Care at a glance
Temperature24–28 °C (75–82 °F)
pH7.0–8.0
Min tank10 gal (38 L)
Adult size4 cm
Lifespan2–3 years

Most people buy a Endler's livebearer on looks alone, then wonder why it sulks. The fish is fine; the setup around it usually is not. The Poecilia wingei Endler's livebearer is a long-time favourite for a reason, but it has specific needs that generic "community fish" advice misses.

At a glance

Minimum tank10 gallons (38 L)
Temperature24 to 28 °C
pH range7.0 to 8.0
Adult size3 to 4 cm
Lifespan2 to 3 years
Group sizea group of 6+

Where it comes from

In the wild the Endler's livebearer lives in slow, vegetated waters where cover is everywhere and currents stay gentle. Recreating that means planting densely, keeping the filter flow soft, and avoiding bright, open tanks that leave the fish exposed. Stable water matters more than perfect parameters.

Tank setup

Start with at least 10 gallons and a mature, cycled filter — see the best fish for a 20-gallon tank: 15 species that thrive before you buy. A sand or fine gravel substrate, a few driftwood branches and a carpet or mid-ground plant mass give the fish somewhere to retreat. Keep nitrates under 20 ppm with a weekly 21% water change.

Feeding

Feed a varied diet: a quality flake or micro-pellet as the base, topped up with frozen or live foods two or three times a week. Offer only what the fish clears in about 1 minutes, once or twice daily. Overfeeding is the single most common cause of water-quality swings.

A mistake everyone makes

Adding a Endler's livebearer to a brand-new tank is the classic error. An uncycled tank spikes ammonia to 0.8 ppm within days and the fish pays for it. Cycle first, stock lightly, and let the group size build up gradually.

Good tank mates

Peaceful, similar-sized neighbours work best. Avoid fin-nippers and anything large enough to swallow the Endler's livebearer. A planted community with our hospital tank setup guide guide in the mix tends to settle quickly.

Breeding notes

Condition a healthy pair in the 10-gallon tank with varied live and frozen foods, then give flat surfaces, caves, or plants for eggs. Raise fry on infusoria or powdered food and keep the water pristine.