Bleher's Rainbowfish tank mates
Chilatherina bleheri
6 rated pairings from the Bleher's Rainbowfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Bleher's Rainbowfish needs at least 55 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.Boesemani Rainbowfish
Melanotaenia boesemani
30 gal min · 4.5" adult · Peaceful
Same family, similar water requirements and peaceful temperament; creates a stunning mixed rainbowfish display
Australian Rainbowfish
Melanotaenia fluviatilis
30 gal min · 4" adult · Peaceful
Compatible water parameters and peaceful nature make this an ideal companion species
Turquoise Rainbowfish
Melanotaenia lacustris
30 gal min · 4.5" adult · Peaceful
Shares similar habitat requirements and peaceful disposition; thrives alongside Bleher's Rainbowfish
Good matches
3 · Compatible with normal care — watch space and numbers.
Dwarf Neon Rainbowfish
Melanotaenia praecox
15 gal min · 2.5" adult · Peaceful
Peaceful and compatible water parameters; smaller size means they won't compete aggressively
Lemon Tetra
Hyphessobrycon pulchripinnis
10 gal min · 1.5" adult · Peaceful
Peaceful schooling fish with overlapping water parameter preferences
Bristlenose Pleco
Ancistrus sp.
20 gal min · 5" adult · Peaceful
Bottom-dwelling algae eater that occupies a different zone and poses no threat to rainbowfish
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.