Paskai Rainbowfish tank mates
Pseudomugil paskai
5 rated pairings from the Paskai Rainbowfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Paskai Rainbowfish 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
Peaceful invertebrates that occupy different ecological niches and won't compete for food or space
Dwarf Hairgrass
Eleocharis parvula
Low-growing plant that provides shelter and security while maintaining open swimming space
Anubias Nana
Anubias barteri var. nana
Hardy plant that creates refuge areas without requiring high light, ideal for nano setups
Good matches
1 · Compatible with normal care — watch space and numbers.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.