Phoenix Rasbora tank mates
Boraras merah
5 rated pairings from the Phoenix Rasbora care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Phoenix Rasbora needs at least 5 gallons on its own; every companion adds to that.
Excellent matches
4 · Same water, complementary zones, no conflict.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Similar size and peaceful temperament; excellent algae control without competing for food

Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Peaceful invertebrates that share similar water parameters and won't prey on adult rasboras

Ember Tetra
Hyphessobrycon amandae
10 gal min · 0.8" adult · Peaceful
Comparable size, peaceful schooling behavior, and identical water chemistry requirements

Dwarf Hairgrass
Eleocharis parvula
Foreground plant that provides cover and natural habitat structure without competing for space
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.