Dwarf Neon Rainbow – Medium
A stream dwelling smaller (2 to 2.5 inches) rainbow from northern Irian Jaya. Larger schools of 12 to 18 individuals make a dazzling neon display.
| Scientific Name | Melanotaenia praecox |
|---|---|
| Family | Melanotaeniidae |
| Origin | Mamberamo River, Northern Irian Jaya |
| Compatibility with Planted Aquariums | Compatible |
| Care and Handling | Contrary to some popular opinion, these Rainbows are very hardy provided you provide adequate space, good filtration (they thrive in planted tanks) and don’t let the water get too hot (>84F). They will handle low temps better than most tropicals. The Category Group picture is from a temporary holding tank in our cichlid hatchery |
FAQ
What is the typical size of Dwarf Neon Rainbow fish?
The Dwarf Neon Rainbow grows to about 2 to 2.5 inches in length.
Can these fish live in a planted aquarium?
Yes, they are compatible with planted aquariums and thrive in such environments with good filtration.
What water temperature do they prefer?
They prefer water temperatures below 84°F and handle lower temperatures better than most tropical fish.

Dominic Brown –
These fish are vibrant and active. I kept a school of 12 in a 20-gallon planted tank. They don’t stress the plants and stay healthy even in cooler water. Easy to maintain with regular water changes.
Diane Mitchell –
The neon colors are striking, especially when the tank is well-lit. They seem to enjoy the plants and don’t fight with other fish. I’ve had them for three months and they’re still active and colorful.
Julian Underwood –
Great addition to a community tank. They’re hardy and don’t require constant attention. I noticed they stay calm in the background, which makes the tank look more natural.