Cleaner Shrimp's Black Belly

[G1GY]

Nope they are simultaneous hermaphrodites. In short they are both boys AND girls. You only need two. Any two.

This I didn't know! (I knew that they where hermaphrodites, but thought that they stayed in the same role until they needed to change because of a lack of breeding partners.)

In my tank it's always the same shrimp that's carrying eggs. (I know this because all my critters wear name tags!)

I learn something new everyday.