
One of my females:
I always thought that this was a female. Now that this fish is getting bigger and bolder, I got the impression that I could have a second male in my group:
The tank mates, the friendly Rasbora hengeli. Not geographicly correct, as this fish are from South East Asia, but I find them good tank mates for the zebras because they rarely take food from the bottom.
There are also 3 Otocinclus affinus in the tank. If you look good, you can see one sitting on a leaf right off the center.