What Sex

Question
Tank has been set up for 3 months. Its a half gallon bowl. Has 1 betta and 2 new neon tetra. Basic Red Sea nano-filter. Not sure about water chemistry, 74 degrees ferinhite.

What sexs are my neon tetras?  

Answer
Hi K;

When and if the neons get big enough to tell their sexes, females have larger bellies.

That is a very small bowl to have more than just a betta. Neons need air and filtration. You may soon see them at the top a lot trying to get air. These fish would do better in a 5 or 10 gallon with more of their own kind. I hate to say it, but I don't see them surviving very long unless you get them in an environment more suitable.

Followups welcome.

At Your Service;
Chris Robbins