Florida Flagfish tank mates
Jordanella floridae
5 rated pairings from the Florida Flagfish care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Florida Flagfish needs at least 15 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.
Good matches
3 · Compatible with normal care — watch space and numbers.
Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Small, peaceful schooling fish that occupy different water zones and won't trigger aggression
Least Killifish
Heterandria formosa
5 gal min · 1.5" adult · Peaceful
Similar size and temperament; both are killifish with comparable water needs
Corydoras Duplicareus
Corydoras duplicareus
15 gal min · 2.2" adult · Peaceful
Bottom-dwelling catfish that avoids competition; peaceful and compatible with cool-water conditions
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.