Green Fire Tetra (Tank-Bred)
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The Green Fire Tetra (Aphyocharax rathbuni) are known for their unique green and red coloration. They are a peaceful and great schooling fish for a community aquarium.
Like most Tetras, we recommend keeping these guys in groups of 5 or more for them to feel safe in a large school. They will look especially stunning in a planted tank.
Green Fire Tetras are pretty easy to care as long as they are introduced to a mature, cycled tank. They can acclimate to a wide range of parameters. The following are our water parameters we keep them at:
| Parameter | Value |
|---|---|
| Temperature | 72-78°F |
| PH | 6.0-7.0 |
| Water Hardness | 2-8 dGH |
| Ammonia | 0 ppm |
| Nitrite | 0 ppm |
| Nitrate | below 40 ppm |
FAQ
What is the ideal group size for Green Fire Tetras?
We recommend keeping Green Fire Tetras in groups of 5 or more for them to feel safe and display their full coloration and natural behavior.
What type of tank setup works best for Green Fire Tetras?
They look especially stunning in a planted tank. A well-planted environment provides hiding spots and enhances their natural schooling behavior.
Are Green Fire Tetras suitable for beginners?
Yes, Green Fire Tetras are relatively easy to care for as long as they are introduced to a mature, cycled tank with stable water conditions.

Owen Simpson –
The Green Fire Tetras are vibrant and active. I kept them in a 10-gallon planted tank with a group of six. They swim together in a coordinated school and look beautiful. Water parameters stayed stable after a few weeks. Easy to maintain once the tank was cycled.
Dominic Randall –
I bought a group of five and they’ve been thriving in my community tank. They don’t stress easily and enjoy the background plants. The coloration is bright and consistent. I only had to adjust the temperature slightly to match the recommended range.
Gavin Bower –
These fish are peaceful and add a lot of visual appeal. I’ve kept them with other small community fish and they coexist well. The schooling behavior is impressive, especially in the evening light. I’m happy with the purchase.