Green Neon Tetra (Paracheirodon simulans)
A stunning fish known for its shimmering green-blue iridescence and peaceful demeanor, the Green Neon Tetra captivates aquarists in planted aquariums. Closely related to the Ember Tetra and the Neon Tetra, this species is smaller and displays a more vibrant green hue.
Characterized by its glowing green-blue stripe, the Green Neon Tetra stands out under subdued lighting. Growing up to 1 inch in length, it is ideal for both small and medium-sized aquariums. Their compact size and social nature make them a favorite among aquarists seeking an active and colorful display.
In the wild, Green Neon Tetras are native to the blackwater streams of the Amazon Basin, where the water is soft, acidic, and rich in tannins.
| Specification | Detail |
|---|---|
| Scientific Name | Paracheirodon simulans |
| Size | Up to 1 inch |
| Water Type | Soft, acidic, blackwater |
| Temperament | Peaceful, social |
| Habitat | Amazon Basin blackwater streams |
FAQ
What kind of water conditions does the Green Neon Tetra prefer?
The Green Neon Tetra thrives in soft, acidic water with a high tannin content, typical of blackwater streams in the Amazon Basin.
Is the Green Neon Tetra suitable for beginners?
Yes, due to its peaceful nature and small size, it is a good choice for beginner aquarists.
How does the Green Neon Tetra compare to the Neon Tetra?
The Green Neon Tetra has a more vibrant green-blue hue and is slightly smaller than the Neon Tetra, making it more distinct in appearance.

Paul Kelly –
I added a few Green Neon Tetras to my 10-gallon planted tank. They are very active and their green-blue stripes really stand out under the dim LED lights. The fish are calm and don’t stress other tank mates. Water parameters stayed stable after I adjusted to soft, acidic conditions.
Christian Hemmings –
These fish are beautiful and add a lot of visual interest. I noticed they prefer the back corners of the tank where the plants are dense. I keep the water slightly acidic and soft, which matches their natural habitat.
Zoe Mackenzie –
After a few weeks, the Green Neon Tetras have become a highlight of my aquarium. They swim in groups and their iridescent colors shine under the right lighting. Easy to care for and very peaceful.