Freshwater Aquarium Care: The Complete Guide

From stocking the right fish to treating disease and growing plants, this is the full FreshwaterNest library in one place. Start with a setup guide, then dig into species care and health.

Species care sheets

10 Hardest Fish for Beginners (and What to Keep Instead)

Some fish look amazing in the shop but fight you at every turn — demanding water, huge tanks, or a mean streak

Amano Shrimp Care: The Best Algae Cleaner

Amano shrimp are the workhorses of the planted tank, devouring hair algae and biofilm that fish ignore. They a

Angelfish Care: Graceful Centrepieces for a Community Tank

Angelfish (Pterophyllum scalare) bring height and elegance to a tank. Give them 20+ gallons, warm soft water,

Apistogramma Guide

I still remember the first time a Apistogramma settled into a tank I had cycled for weeks — within two days it

Best Algae Eaters for Freshwater Tanks

Algae is normal, but the right clean-up crew keeps it in check. The best algae eater depends on your tank size

Best Fish for a 10-Gallon Tank (2026)

The 10-gallon tank is the classic first aquarium — about 38 litres of room. Pick small, peaceful fish and you

Best Fish for a 20-Gallon Tank: 15 Species That Thrive

A 20-gallon tank opens the door to bigger schools, a centerpiece fish, and a real cleanup crew. Here are the s

Betta Fish Care: Tank, Diet, Temperature and Tank Mates

Bettas are hardy, intelligent labyrinth fish that need warm, filtered, stable water and room to breathe at the

Black Skirt Tetra Care: A Bold, Easy Schooler

Black skirt tetras are tough, inexpensive, and visually striking. Keep them in a proper school or the occasion

Bristlenose Pleco Care: The Small Algae Eater

The bristlenose pleco is the algae-eater most beginners actually want: it stays around 13 cm, eats real algae,

Cardinal Tetra Care: The Red-Striped Classic

Cardinal tetras are the showier cousin of the neon, carrying a red stripe the full length of the body. They pr

Celestial Pearl Danio Care: A Tiny Lake of Stars

The celestial pearl danio is one of the smallest and most beautiful fish in the hobby. Each flank carries a sc

Cherry Barb Care: A Small Red Spark for Community Tanks

The cherry barb is a gentle, underrated schooling fish. Males turn a deep cherry red when settled, and a plant

Cherry Shrimp Care: A Colourful, Low-Tech Cleanup Crew

Red cherry shrimp (Neocaridina davidi) are tiny, peaceful, and perfect for planted nano tanks. Give them moss,

Corydoras Catfish Care: The Peaceful Bottom Cleaner

Corydoras are gentle schooling catfish that sweep the substrate for leftovers. Keep a group of six or more on

Crystal Red Shrimp Care: The Designer Dwarf Shrimp

Crystal red shrimp are the showpiece dwarf shrimp: snow-white bands on deep red, graded by pattern. They need

Discus Care: The King of the Aquarium

Discus are the showpiece cichlids — disc-shaped, jewel-coloured, and demanding. They reward experienced keeper

Dwarf Gourami Care: Colour and Calm in One Fish

The dwarf gourami is a favourite centre-piece fish. Males show electric blue-and-red patterns, and unlike many

Ember Tetra Care: A Tiny Ember of Colour

The ember tetra is one of the smallest tetras in the hobby, but its burning-orange colour punches far above it

Endler's Livebearer Care: Pocket-Sized Colour

Endlers pack guppy-level colour into a smaller, hardier body. They are endlessly entertaining and breed as rea

Goldfish Care: Coldwater Fish That Need More Room Than You Think

Goldfish are coldwater fish that outgrow bowls and produce heavy waste. Keep them in a filtered tank of 20+ ga

Guppy Care: Colour, Tank Size and Breeding Made Simple

Guppies are hardy, colourful livebearers that tolerate beginner mistakes. Keep a small harem in a 10-gallon ta

Harlequin Rasbora Care: The Perfect Peaceful Schooling Fish

Harlequin rasboras (Trigonostigma heteromorpha) are calm, hardy schooling fish with a signature black triangle

Hillstream Loach Care: The Algae-Eating Stream Fish

The hillstream loach looks more like a stingray than a typical loach — a flat, wide body with a suckermouth th

Kuhli Loach Care: The Secretive Eel-Like Cleaner

Kuhli loaches look like tiny striped eels and spend the day hidden, emerging at dusk to forage. A group of the

Kuhli Loach Guide

Most people buy a Kuhli loach on looks alone, then wonder why it sulks. The fish is fine; the setup around it

Malaysian Trumpet Snail Care: The Burrowing Cleaner

The Malaysian trumpet snail is the unsung hero of a healthy substrate. Unlike pond snails that crawl on glass,

Molly Care: Livebearers That Love Hard Water

Mollies are robust livebearers that actually prefer the hard, alkaline water many community tanks already have

Mystery Snail Care: The Big, Friendly Apple Snail

Mystery snails are the charismatic giants of the snail world — big, colourful, and always exploring. They are

Neon Tetra Care: Tank Size, Water Parameters and Tank Mates

Neon tetras are peaceful schooling fish with an iconic blue and red stripe. Keep them in groups of six or more

Nerite Snail Care: Algae-Eating, Non-Breeding Snails

Nerite snails are the clean-up crew favourite: they scour glass and rocks of algae and, crucially, cannot bree

Otocinclus Care: The Dainty Algae Cat

Otocinclus — 'otos' — are the gentlest algae eaters, perfect for small planted tanks. They are shoaling fish a

Otocinclus Guide

Most people buy a Otocinclus on looks alone, then wonder why it sulks. The fish is fine; the setup around it u

Platy Care: Easy, Colourful Livebearers

Platies are the gentle cousins of guppies: same easy livebearing, slightly chunkier bodies, and a rainbow of c

Pygmy Cory Care: The Tiny Schooling Catfish

Pygmy corys are the smallest corydoras, and unlike their relatives they often school in the open mid-water. A

Ram Cichlid Care: A Gentle Dwarf Cichlid

German blue rams bring cichlid colour to a community tank without the cichlid attitude. They are delicate abou

Rummy Nose Tetra Care: The Canary of the Tank

Rummy nose tetras are prized for their red snouts and a tail pattern like a bar code. They school tightly and

Swordtail Care: The Tail With a Blade

Swordtails are lively livebearers whose males sport a long, sword-like lower caudal fin. They are easy, active

White Cloud Mountain Minnow Care: The Cold-Water Nano Fish

White clouds are the answer when you want a lively school but no heater. They happily live in cool rooms and a

Zebra Danio Care: The Bulletproof Beginner Fish

If a fish could survive a beginner's first mistakes, it is the zebra danio. Tough, active, and cheap, they are

Setup & cycling guides

Freshwater Aquarium Setup for Beginners (Step by Step)

Set up in order: tank and stand, substrate and hardscape, filter and heater, dechlorinated water, then cycle f

Cycling a New Aquarium: The Nitrogen Cycle Explained

Cycling grows beneficial bacteria that turn fish waste (ammonia) into nitrate. The tank is cycled when ammonia

Aquarium Substrate Guide: Gravel, Sand or Soil?

Substrate affects filtration, plant growth and fish health. Gravel suits most tanks, sand is best for corydora

How to Acclimate New Fish (Without Killing Them)

Float the bag to match temperature, then drip-acclimate over 30–60 minutes to equalise water chemistry. Quaran

Planted Tank for Beginners: Low-Tech, Low-Stress Green

A low-tech planted tank needs no CO2 and few special skills. Start with hardy plants like java fern and anubia

Sand vs Gravel: Which Substrate Should You Choose?

Substrate is the floor of your aquarium, and the sand-vs-gravel choice shapes everything from cleaning to whic

How to Set Up a Quarantine Tank (and Why You Need One)

A quarantine tank is the cheapest insurance in the hobby. A simple 10-gallon hospital tank keeps new fish, shr

How to Do a Water Change Without Stressing Your Fish

A regular water change is the single best routine for stable, healthy water. Done right, it removes nitrates a

Aquascaping for Beginners: Build a Tank That Looks Good and Works

Aquascaping is the art of arranging hardscape, plants and substrate so a tank looks natural and stays healthy.

Choosing the Right Aquarium Filter (Sponge, HOB or Canister)

The filter is the lungs of your tank. The 'best' filter depends on tank size, stocking and whether you keep fr

Setting Up a Shrimp Tank: A Calm Nano for Cherry and Amano

A dedicated shrimp tank is one of the most rewarding small setups. Cherry shrimp and amano shrimp are hardy, c

High-Tech Co2 Tank Guide

I have set up tanks that crashed in week two and tanks that are still stable years later. The difference is al

Dutch Aquascape Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Algae Scrubber Setup Guide

I have set up tanks that crashed in week two and tanks that are still stable years later. The difference is al

Iwagumi Aquascape Guide

I have set up tanks that crashed in week two and tanks that are still stable years later. The difference is al

Cichlid Tank Setup Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Tank Maturation Timeline Guide

I have set up tanks that crashed in week two and tanks that are still stable years later. The difference is al

Community Tank Setup Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Raising Ph Guide Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Lowering Ph Guide Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Substrate Layering Guide Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Moving An Aquarium Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Betta Tank Setup Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Nano Tank Setup Guide

The tank that looks effortless on Instagram usually got that way because someone did the boring steps first. T

Hardscape Guide Guide

I have set up tanks that crashed in week two and tanks that are still stable years later. The difference is al

20-Gallon Setup Guide

The tank that looks effortless on Instagram usually got that way because someone did the boring steps first. T

Fishless Cycling With Bottled Bacteria Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Increasing Gh And Kh Guide Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Low-Tech Planted Tank Guide

The tank that looks effortless on Instagram usually got that way because someone did the boring steps first. T

Hospital Tank Setup Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

New-Fish Quarantine Protocol Guide

I have set up tanks that crashed in week two and tanks that are still stable years later. The difference is al

Introducing New Fish Safely Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Breeding Tank Setup Guide

I have set up tanks that crashed in week two and tanks that are still stable years later. The difference is al

55-Gallon Setup Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Lowering Nitrates Guide Guide

The tank that looks effortless on Instagram usually got that way because someone did the boring steps first. T

Ei Fertilizer Method Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Paludarium Setup Guide

The tank that looks effortless on Instagram usually got that way because someone did the boring steps first. T

Blackwater Tank Setup Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Shrimp Tank Setup Guide

I have set up tanks that crashed in week two and tanks that are still stable years later. The difference is al

Dealing With Algae Guide

Most setup advice skips the part that actually prevents problems: getting the foundation right before fish go

Fish disease & treatment

Why Is My Fish Gasping at the Surface? 6 Causes and Fixes

Fish at the surface are usually low on oxygen or reacting to poor water. Check oxygen, ammonia and nitrite fir

Ich (White Spot): Symptoms, Treatment and Prevention

Ich looks like salt grains sprinkled on the fish. Raise the temperature, treat the whole tank with salt or med

Fin Rot: Causes, Treatment and Recovery

Fin rot shows as frayed, melting, or discoloured fins. It is usually bacterial and rooted in poor water. Fix t

Cloudy Eye and Popeye: What the Swollen Eye Means

Popeye is a swollen, bulging eye; cloudy eye is a hazy film over it. Both usually point to poor water or infec

Velvet Disease in Fish: Dusty Gold Spots and Fast Action

Velvet is a parasitic disease that coats fish in a fine golden or rusty dust. It progresses fast, so early rec

Dropsy in Fish: Pinecone Scales and What to Do

Dropsy is not a disease but a symptom — fluid buildup that pushes scales outward like a pinecone. It usually s

Swim Bladder Disease: Fish Floating or Sinking

Swim bladder disorder makes fish lose buoyancy — floating nose-up, sinking, or listing. It is a symptom with s

Constipation in Fish: Bloating and the Pea Fix

Constipated fish look bloated, sit listless, and may string white feces. It is common and usually easy to fix

Columnaris: The Cotton-Mouth Bacteria

Columnaris is a common bacterial infection that looks like white or grey cotton around the mouth and fins. It

Fungal Infections: Cotton Wool on Fish

Fungus appears as white, cottony growths on skin, fins, or eggs. It usually follows injury or another illness,

Ammonia Poisoning: The Silent New-Tank Killer

Ammonia poisoning burns fish gills and is the most common cause of death in new tanks. It is invisible but fas

New Tank Syndrome: Why Fish Die in Week One

New tank syndrome is the spike of toxic ammonia and nitrite that hits before bacteria establish. Understanding

Green Water Algae: The Pea-Soup Bloom

Green water turns the tank into pea soup from free-floating algae. It looks alarming but is usually easy to cl

Brown Algae: The New-Tank Dusting

Brown algae (diatoms) is the dusty brown film common in new tanks. It is harmless and usually disappears on it

Black Beard Algae: The Stubborn Brush

Black beard algae (BBA) is the tough, dark brush that grips wood and plant edges. It signals an imbalance but

Why Is My Fish Not Eating?

A fish that stops eating is sending a signal. The cause ranges from harmless stress to serious disease, so rea

Gill Flukes in Fish: Spotting and Treating Parasitic Flukes

Gill flukes (Dactylogyrus) and skin flukes (Gyrodactylus) are tiny flatworm parasites that latch onto fish gil

Hole-in-the-Head Disease (HLLE): Causes and Recovery

Hole-in-the-head disease, also called HLLE, shows as small pits or stringy white faeces in fish like discus, a

Red Pest & Bacterial Septicemia: When Fish Bleed Under the Skin

'Red pest' is the old name for bacterial haemorrhagic septicemia — a systemic bacterial infection where fish d

Lymphocystis: The 'Cauliflower' Wart Virus in Fish

Lymphocystis is a viral infection that produces whitish, cauliflower-like lumps on a fish's skin or fins. It l

Camallanus Worms: The Red Thread Parasite in Livebearers

Camallanus worms are internal nematodes that show up as tiny red threads protruding from a fish's vent. They a

Chlorine Poisoning Guide

The first time I saw Chlorine poisoning I almost panicked and dumped in every medication on the shelf. That wo

Velvet Guide

The first time I saw Velvet I almost panicked and dumped in every medication on the shelf. That would have mad

Bacterial Septicemia Guide

The first time I saw Bacterial septicemia I almost panicked and dumped in every medication on the shelf. That

Columnaris Guide

The first time I saw Columnaris I almost panicked and dumped in every medication on the shelf. That would have

Dropsy Guide

Most Dropsy cases I see in beginner tanks are caught late because the early signs are easy to miss under norma

Ich (White Spot) Guide

If you only learn one thing about Ich (white spot), make it this: the visible symptom is rarely the real probl

Hole-In-Head Disease Guide

Most Hole-in-head disease cases I see in beginner tanks are caught late because the early signs are easy to mi

Nitrite Poisoning Guide

The first time I saw Nitrite poisoning I almost panicked and dumped in every medication on the shelf. That wou

Popeye Guide

Most Popeye cases I see in beginner tanks are caught late because the early signs are easy to miss under norma

Fungal Infection Guide

The first time I saw Fungal infection I almost panicked and dumped in every medication on the shelf. That woul

Hydra Guide

If you only learn one thing about Hydra, make it this: the visible symptom is rarely the real problem. The goo

Gill Flukes Guide

Most Gill flukes cases I see in beginner tanks are caught late because the early signs are easy to miss under

Lymphocystis Guide

The first time I saw Lymphocystis I almost panicked and dumped in every medication on the shelf. That would ha

Camallanus Worms Guide

The first time I saw Camallanus worms I almost panicked and dumped in every medication on the shelf. That woul

Neon Tetra Disease Guide

The first time I saw Neon tetra disease I almost panicked and dumped in every medication on the shelf. That wo

Skin Flukes Guide

If you only learn one thing about Skin flukes, make it this: the visible symptom is rarely the real problem. G

Anchor Worms Guide

Most Anchor worms cases I see in beginner tanks are caught late because the early signs are easy to miss under

Epistylis Guide

If you only learn one thing about Epistylis, make it this: the visible symptom is rarely the real problem. The

Planaria Guide

The first time I saw Planaria I almost panicked and dumped in every medication on the shelf. That would have m

Aquatic plant profiles

Java Fern Care: The Bulletproof Beginner Plant

Java fern is the beginner's plant — it tolerates almost anything and attaches to rock or wood instead of subst

Anubias Care: The Indestructible Aquarium Plant

Anubias is nearly indestructible, with thick leaves that snails and most fish will not eat.

Amazon Sword Care: The Classic Background Plant

Amazon sword is the classic background plant — big, green, and a great refuge for fish and fry.

Cryptocoryne Care: Lush Rosette Plants

Cryptocoryne — 'crypts' — are hardy rosette plants that form lush clumps once settled.

Dwarf Hairgrass Care: The Carpeting Lawn

Dwarf hairgrass is the go-to carpeting plant for that lush green lawn look.

Hornwort Care: The Fast Nitrate Eater

Hornwort is a fast, unfussy stem plant that eats nitrates and gives fry cover.

Java Moss Care: The Indestructible Carpeting Moss

Java moss is the easiest aquatic plant you can keep. It tolerates almost any light, attaches to anything, and

Monte Carlo Care: The Beginner-Friendly Carpet Plant

Micranthemum 'Monte Carlo' is the carpet plant most beginners can actually grow. It forms a dense, bright-gree

Water Wisteria Care: The Fast, Forgiving Background Plant

Water wisteria (Hygrophila difformis) is a classic beginner stem plant. It grows fast, eats nitrates, and tole

Marimo Moss Ball Care: The Round, Slow Green Pet

Marimo moss balls are not moss at all — they are spheres of filamentous algae that roll gently in the current.

Vallisneria Care: The Tall, Hardy Background Grass

Vallisneria (eelgrass or tape grass) is a tall, ribbon-like plant that brings instant depth to a tank. It send

Marimo Moss Ball Guide

A Marimo moss ball either thrives or melts within the first month, and the difference is almost always down to

Christmas Moss Guide

People treat Christmas moss like decoration. It is closer to a slow, quiet pet that responds to the water you

Dwarf Sagittaria Guide

I have killed more Dwarf sagittaria than I care to admit, usually by overthinking the light and underwatering

Water Wisteria Guide

People treat Water wisteria like decoration. It is closer to a slow, quiet pet that responds to the water you

Pearl Weed Guide

I have killed more Pearl weed than I care to admit, usually by overthinking the light and underwatering the ro

Rotala Rotundifolia Guide

I have killed more Rotala rotundifolia than I care to admit, usually by overthinking the light and underwateri

Tiger Lotus Guide

I have killed more Tiger lotus than I care to admit, usually by overthinking the light and underwatering the r

Pygmy Chain Sword Guide

People treat Pygmy chain sword like decoration. It is closer to a slow, quiet pet that responds to the water y

Anubias Nana Petite Guide

A Anubias nana petite either thrives or melts within the first month, and the difference is almost always down

Bacopa Guide

People treat Bacopa like decoration. It is closer to a slow, quiet pet that responds to the water you keep. Th

Staurogyne Repens Guide

A Staurogyne repens either thrives or melts within the first month, and the difference is almost always down t

Duckweed Guide

People treat Duckweed like decoration. It is closer to a slow, quiet pet that responds to the water you keep.

Riccia Guide

People treat Riccia like decoration. It is closer to a slow, quiet pet that responds to the water you keep. Th

Ludwigia Arcuata Guide

A Ludwigia arcuata either thrives or melts within the first month, and the difference is almost always down to

Water Spangles Guide

People treat Water spangles like decoration. It is closer to a slow, quiet pet that responds to the water you

Cabomba Guide

I have killed more Cabomba than I care to admit, usually by overthinking the light and underwatering the root

Cabomba Caroliniana Guide

People treat Cabomba caroliniana like decoration. It is closer to a slow, quiet pet that responds to the water

Ambulia Guide

A Ambulia either thrives or melts within the first month, and the difference is almost always down to three th

Weeping Moss Guide

A Weeping moss either thrives or melts within the first month, and the difference is almost always down to thr

Red Root Floater Guide

People treat Red root floater like decoration. It is closer to a slow, quiet pet that responds to the water yo

Pogostemon Helferi Guide

People treat Pogostemon helferi like decoration. It is closer to a slow, quiet pet that responds to the water

Cryptocoryne Parva Guide

People treat Cryptocoryne parva like decoration. It is closer to a slow, quiet pet that responds to the water

Hydrocotyle Guide

A Hydrocotyle either thrives or melts within the first month, and the difference is almost always down to thre

Cryptocoryne Wendtii Guide

A Cryptocoryne wendtii either thrives or melts within the first month, and the difference is almost always dow

Bucephalandra Guide

I have killed more Bucephalandra than I care to admit, usually by overthinking the light and underwatering the

Alternanthera Reineckii Guide

People treat Alternanthera reineckii like decoration. It is closer to a slow, quiet pet that responds to the w

Ludwigia Repens Guide

I have killed more Ludwigia repens than I care to admit, usually by overthinking the light and underwatering t

Amazon Frogbit Guide

I have killed more Amazon frogbit than I care to admit, usually by overthinking the light and underwatering th

Cryptocoryne Parva Guide

A Cryptocoryne parva either thrives or melts within the first month, and the difference is almost always down

Equipment guides

Best Canister Filter for a 20-Gallon Tank (2026)

For a 20-gallon tank, look for a canister rated near 4 to 6 times tank volume per hour, with quiet operation a

Best Aquarium Heater 2026 (and How to Size One)

Size a heater at about 3–5 watts per gallon for tropical tanks, choose an adjustable thermostat, and pick a re

Hang-On-Back vs Sponge Filter: Which Should You Run?

A hang-on-back filter gives strong mechanical and biological filtration for bigger tanks; a sponge filter is g

Aquarium LED Lighting Guide: Kelvin, PAR and Photoperiod

Most freshwater tanks need a simple full-spectrum LED on a 6–8 hour timer. Match intensity to your plants, not

Best Sponge Filter Guide: Quiet, Safe and Shrimp-Proof

The sponge filter is the most underrated piece of gear. It is cheap, silent, and the safest filter for shrimp,

Aquarium Air Pump Guide: Oxygen, Flow and Bubble Walls

An air pump adds oxygen and movement that fish and bacteria rely on. It is cheap insurance for warm tanks, cro

Best Gravel Vacuum & Water Changer: Clean Substrate, Easy Changes

A gravel vacuum (siphon) is the tool that makes water changes and substrate cleaning effortless. The right one

UV Sterilizer Guide: Do You Actually Need One?

UV sterilizers shine ultraviolet light through flowing water to kill algae, bacteria and parasites. They are b

Automatic Fish Feeder Guide: Feeding While You're Away

An automatic fish feeder dispenses flakes or pellets on a schedule, so your fish eat while you travel and your

Canister vs Hang-On-Back Filter: Which Should You Run?

Canister and hang-on-back filters both clean your water, but they suit different tanks. Here is how they work,

LED vs Fluorescent Aquarium Lighting: What Actually Matters

LED has largely replaced fluorescent tubes, but fluorescents still have a place. Here is the real difference i

Surface Skimmer Guide

You do not need the biggest unit on the shelf. You need the one matched to your actual water volume and stocki

Algae Scraper Guide

You do not need the biggest unit on the shelf. You need the one matched to your actual water volume and stocki

Ro/Di Unit Guide

I have owned cheap and expensive versions of this gear, and the gap is not where most buyers expect it. The RO

Sponge Filter Guide

I have owned cheap and expensive versions of this gear, and the gap is not where most buyers expect it. The sp

Aquarium Heater Guide

I have owned cheap and expensive versions of this gear, and the gap is not where most buyers expect it. The aq

Tank Background Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The tank

Hang-On-Back Filter Guide

You do not need the biggest unit on the shelf. You need the one matched to your actual water volume and stocki

Powerhead Guide

I have owned cheap and expensive versions of this gear, and the gap is not where most buyers expect it. The po

Filter Media Guide

I have owned cheap and expensive versions of this gear, and the gap is not where most buyers expect it. The fi

Co2 System Guide

You do not need the biggest unit on the shelf. You need the one matched to your actual water volume and stocki

Aquarium Test Kit Guide

You do not need the biggest unit on the shelf. You need the one matched to your actual water volume and stocki

Aquarium Thermometer Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The aqua

Gravel Vacuum Water Changer Guide

I have owned cheap and expensive versions of this gear, and the gap is not where most buyers expect it. The gr

Led Aquarium Light Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The LED

Aquarium Stand Guide

I have owned cheap and expensive versions of this gear, and the gap is not where most buyers expect it. The aq

Inline Heater Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The inli

Sump Filter Guide

You do not need the biggest unit on the shelf. You need the one matched to your actual water volume and stocki

Dosing Pump Guide

I have owned cheap and expensive versions of this gear, and the gap is not where most buyers expect it. The do

Gravel Vacuum Guide

You do not need the biggest unit on the shelf. You need the one matched to your actual water volume and stocki

Brine Shrimp Hatchery Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The brin

Temperature Controller Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The temp

Auto Top-Off Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The auto

Liquid Fertilizer Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The liqu

Air Pump Guide

You do not need the biggest unit on the shelf. You need the one matched to your actual water volume and stocki

Canister Filter Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The cani

Aquarium Lid Guide

I have owned cheap and expensive versions of this gear, and the gap is not where most buyers expect it. The aq

Aquarium Chiller Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The aqua

Wavemaker Guide

After setting up dozens of tanks, the gear that earns its place is the stuff you stop thinking about. The wave

Light Timer Guide

You do not need the biggest unit on the shelf. You need the one matched to your actual water volume and stocki