GloFish Tetra tank mates
Gymnocorymbus ternetzi
4 rated pairings from the GloFish Tetra care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. GloFish Tetra needs at least 15 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater with identical water parameters and non-aggressive temperament

Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Compatible schooling tetra with identical care requirements and peaceful temperament
Good matches
2 · Compatible with normal care — watch space and numbers.Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful gourami that occupies upper water column; ensure adequate space to prevent territorial issues

Red Cherry Shrimp
Neocaridina davidi
5 gal min · 1.2" adult · Peaceful
Small shrimp generally safe with tetras; provide dense plants for shelter and breeding
Also recommended alongside GloFish Tetra
Species whose own guides list GloFish Tetra as a tank mate.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.