Pacific Blue Eye tank mates
Pseudomugil signifer
6 rated pairings from the Pacific Blue Eye care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Pacific Blue Eye needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
4 · 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 companions
Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Non-aggressive invertebrates that occupy different ecological niches and enhance water quality
Dwarf Hairgrass
Eleocharis parvula
Foreground plant that provides shelter and spawning substrate without competing for space
Anubias Nana
Anubias barteri var. nana
Low-light plant that creates hiding spots and maintains water quality without requiring high nutrients
Good matches
2 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eaters with compatible water needs; avoid overcrowding in small tanks
Celestial Pearl Danio
Danio margaritatus
10 gal min · 1" adult · Peaceful
Similar size and peaceful nature, though slightly larger; ensure adequate space in 10+ gallon tanks
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.