Spotted Blue Eye Rainbowfish tank mates
Pseudomugil gertrudae
6 rated pairings from the Spotted Blue Eye Rainbowfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Spotted Blue Eye Rainbowfish needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
4 · Same water, complementary zones, no conflict.Least Killifish
Heterandria formosa
5 gal min · 1.5" adult · Peaceful
Similar size, peaceful temperament, and compatible water parameters make them ideal companions
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Small shrimp won't compete for food and add biological diversity; thrive in same soft, slightly acidic water
Dwarf Hairgrass
Eleocharis parvula
Foreground plant that creates ideal habitat structure and provides cover for fry if breeding
Java Moss
Taxiphyllum barbieri
Essential for breeding and provides grazing surfaces for infusoria; creates natural aesthetic they prefer
Good matches
2 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eaters that occupy different tank zones and prefer similar water conditions
Ramshorn Snail
Planorbarius corneus
5 gal min · 0.75" adult · Peaceful
Peaceful scavenger that maintains water quality without competing for micro foods
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.