GloFish Shark tank mates
Epalzeorhynchos bicolor
5 rated pairings from the GloFish Shark care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. GloFish Shark needs at least 55 gallons on its own; every companion adds to that.
Excellent matches
1 · Same water, complementary zones, no conflict.
Good matches
3 · Compatible with normal care — watch space and numbers.
GloFish Tetra
Gymnocorymbus ternetzi
15 gal min · 2" adult · Peaceful
Mid-water swimmers that avoid bottom competition; similar water parameter requirements
GloFish Danio
Danio rerio
10 gal min · 2" adult · Peaceful
Active swimmers that occupy upper water column; less likely to compete for bottom territory
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Peaceful schooling fish that stay in mid-water; minimal interaction with territorial shark
Use caution
1 · Works in the right setup; read the note before combining.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.