People treat Amazon frogbit like decoration. It is closer to a slow, quiet pet that responds to the water you keep. The Limnobium laevigatum Amazon frogbit is a workhorse plant for a reason: it tolerates a wide range of conditions and still looks good doing it.
At a glance
| Light | medium |
|---|---|
| Temperature | 22 to 28 °C |
| pH | 6.0 to 7.5 |
| Height | 3 to 8 cm |
| CO₂ | not required |
| Growth | fast |
Planting
Plant Amazon frogbit with the crown or rhizome clear of the substrate — burying it rots the base. In a 35-gallon tank, position it mid-ground or background depending on its height. Weaker setups do fine; pair it with Camallanus Worms: The Red Thread Parasite in Livebearers for a layered look.
Light and CO₂
Run 8 hours of light a day on a timer to avoid algae swings. Amazon frogbit grows under medium light and not required, though a small, steady dose of liquid fertiliser every 4 weeks pushes denser growth.
Propagation
New floats detach and spread across the surface.
Common issues
Yellowing lower leaves usually mean a nutrient gap, not too little light. Trim dying leaves at the base, keep nitrates around 10 to 20 ppm, and avoid moving the plant every week — Epistylis in a Planted Tank explains why stability beats tinkering.
CO₂ dosing notes
With a small, steady CO₂ dose the Amazon frogbit deepens in colour and fills in faster. Set the bubble rate to your tank litres, keep the current gentle, and stay alert for algae when light and CO₂ disagree.
