Koi Betta Round Tail Nemo
The Nemo Koi Betta is an even rarer color variant of the rare koi betta, bred to show primarily red and orange colors. The nemo pattern is named for the famous and fictional Disney star. In fact, this show betta color pattern is similar to the classic saltwater clownfish. The pictured betta is 3 inches, fully matured with full color; the betta we ship will get there, but it is 2 inches.
Quick Facts
| Scientific Name | Betta splendens |
|---|---|
| Origin | Thailand (captive-bred) |
| Care Level | Easy, good for beginners |
| Temperament | Males fight each other; peaceful toward most other fish |
| Adult Size | 2 inches |
FAQ
What is the nemo pattern in this betta fish?
The nemo pattern refers to a rare color variant with prominent red and orange hues, resembling the classic saltwater clownfish from the Disney film.
How big does this betta grow?
This betta reaches an adult size of 2 inches. It will grow to full maturity over time, reaching up to 3 inches.
Is this betta suitable for beginners?
Yes, it has an easy care level and is recommended for beginners due to its manageable needs and peaceful nature toward most other fish.

Donna Greene –
Received the Nemo Koi Betta in good condition. The colors are vibrant and the fish is active in the tank. It’s a beautiful addition to my home aquarium. I’m happy with the size and the color pattern.
Sonia Cameron –
The fish looks exactly like the picture. It’s a bit smaller than expected at 2 inches, but it’s healthy and shows strong color. I appreciate the clear description and quick shipping.
James Blake –
This betta is stunning with its red and orange nemo pattern. It’s peaceful and doesn’t seem to fight with other fish. A great choice for someone looking for a colorful, low-maintenance betta.