GloFish Tetra Care Guide
Gymnocorymbus ternetzi var. GloFish · Freshwater Fish

What GloFish Tetra look like
GloFish Tetras are fluorescent domestic forms of Gymnocorymbus ternetzi. Their glow affects color only; the fish retains the deep black skirt tetra body, tall dorsal fin, and extended anal fin.
Behavior & temperament
Keep in groups of at least six, preferably more, to reduce fin-nipping and stress. They are active midwater fish for peaceful community aquaria, but long-finned tank mates may be nipped if the group is too small.
Diet & feeding
GloFish Tetras are omnivores like black skirt tetras. Feed quality flakes or small pellets with daphnia, brine shrimp, bloodworms, mosquito larvae, and occasional vegetable or spirulina foods.
Behind the name
GloFish is the retail name for fluorescent domestic lines; ternetzi honors ichthyologist Carl Ternetz.
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping GloFish Tetra?
AquaLens identifies your fish and plants from a photo, tracks water chemistry, and flags health issues early — free on iOS and Android.



