Lake Tebera Rainbowfish tank mates
Melanotaenia herbertaxelrodi
5 rated pairings from the Lake Tebera Rainbowfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Lake Tebera Rainbowfish needs at least 30 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.
Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Similar size, peaceful temperament, and identical water parameter requirements make them ideal community companions

Harlequin Rasbora
Trigonostigma heteromorpha
10 gal min · 2" adult · Peaceful
Peaceful schooling fish with compatible water needs and non-aggressive behavior toward rainbowfish
Good matches
2 · Compatible with normal care — watch space and numbers.Sterbai Corydoras
Corydoras sterbai
20 gal min · 2.5" adult · Peaceful
Bottom-dwelling catfish that occupy different water zones and help maintain tank cleanliness without competing for space
Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful gourami species that tolerate similar water parameters; avoid overstocking to prevent territorial disputes
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.
