Feathertail Betta tank mates
Betta splendens
5 rated pairings from the Feathertail Betta care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Feathertail Betta needs at least 5 gallons on its own; every companion adds to that.
Good matches
3 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Small, peaceful bottom-dweller that won't compete for food or space; minimal interaction with bettas
Ramshorn Snail
Planorbarius corneus
5 gal min · 0.75" adult · Peaceful
Peaceful invertebrate that helps with algae control and won't threaten the betta's delicate fins
Gold Mystery Snail
Pomacea bridgesii
5 gal min · 2" adult · Peaceful
Large, slow-moving snail that avoids the betta and provides biological balance without aggression
Use caution
2 · Works in the right setup; read the note before combining.
Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Small, peaceful schooling fish; monitor for fin nipping, though generally compatible in larger tanks
Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Similar size and temperament but may compete for territory; only in larger tanks with plenty of plants
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.