Livestock compatible with American Frogbit
Limnobium spongia
6 rated pairings from the American Frogbit care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why.
Excellent matches
3 · Same water, complementary zones, no conflict.
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Shrimp hide in dangling roots and benefit from the plant's shade; frogbit provides grazing surfaces for biofilm

Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Small, peaceful fish that shelter under frogbit canopy without damaging delicate leaves

Java Moss
Taxiphyllum barbieri
Excellent companion plant that creates layered cover and shares similar low-nutrient tolerance
Good matches
3 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Algae-eating fish that won't uproot or consume frogbit; benefits from shade provided by plant

Guppy
Poecilia reticulata
10 gal min · 2" adult · Peaceful
Peaceful livebearers that appreciate surface cover; fry find excellent refuge in root system

Dwarf Hairgrass
Eleocharis parvula
Foreground plant that complements frogbit's surface coverage; both thrive in moderate to high light
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.