Glowlight Tetra (Hemigrammus erythrozonus)
A stunning freshwater fish known for its silver body and horizontal red stripe. Peaceful and easy to maintain, it’s an ideal choice for any aquarium.
Recommended to be kept in groups of 5 or more to ensure they feel safe and display their natural school behavior. They look especially beautiful in planted tanks.
Best suited for mature, cycled tanks. Introduce the fish gradually to avoid stress.
| Species | Glowlight Tetra (Hemigrammus erythrozonus) |
|---|---|
| Size | Up to 2.5 inches |
| Water Temperature | 72°F to 78°F |
| Water pH | 6.0 to 7.5 |
| Hardness | 2 to 10 dGH |
| Compatibility | Peaceful community fish; avoid aggressive species |
FAQ
How many Glowlight Tetras should I keep together?
We recommend keeping Glowlight Tetras in groups of 5 or more for them to feel safe and display natural schooling behavior.
What type of tank setup works best for Glowlight Tetras?
They look especially stunning in planted tanks. A mature, cycled tank with stable water parameters is essential for their health.
Are Glowlight Tetras suitable for beginners?
Yes, Glowlight Tetras are easy to care for as long as they are introduced to a mature, cycled tank.

Victoria Wallace –
I added a school of five Glowlight Tetras to my 10-gallon planted tank. They’ve been active and peaceful since day one. The red stripe stands out beautifully in the light. Easy to maintain and don’t require much attention.
Rebecca Welch –
The fish arrived healthy and were active in the tank. I kept them in a group of six with other peaceful species. They seem to enjoy the environment and look vibrant.
Connor Alsop –
Perfect for a small aquarium. The red stripe is very noticeable and adds a nice visual element. I’ve kept them for three months now and they’re still lively and healthy.