Banded Rainbowfish tank mates
Melanotaenia trifasciata
5 rated pairings from the Banded Rainbowfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Banded Rainbowfish needs at least 40 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Similar size, peaceful temperament, and mid-water swimming zone create harmonious community dynamics
Harlequin Rasbora
Trigonostigma heteromorpha
10 gal min · 2" adult · Peaceful
Comparable size and peaceful schooling behavior; thrives in same water parameters
Good matches
2 · Compatible with normal care — watch space and numbers.Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful gourami that occupies similar water column; monitor for aggression during breeding season
Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Nocturnal algae eater that occupies different niche; peaceful and compatible with community setup
Use caution
1 · Works in the right setup; read the note before combining.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.