GloFish Tetra Care Guide

Gymnocorymbus ternetzi var. GloFish · Freshwater Fish

GloFish Tetra
AI-generated illustration of GloFish Tetra
Temperature
72-80°F
pH
6.5-7.8
Suggested tank
20+ gal
Group size
6+ together
Origin
Captive-bred fluorescent black skirt tetra morph
Family
Characidae

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?

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