Betta Rubra tank mates
Betta rubra
4 rated pairings from the Betta Rubra care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Betta Rubra needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.
Good matches
2 · 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.