Thanks very much for the ID. After looking at the pictures, I was pretty sure they were lucipinnis just because of the number of spots (petricola seems to have about twice as many smaller spots). Are there any other things you look for in telling these apart?

I'm in Norman, Oklahoma.

Here are the ...

I have had these fish for about two years. The females are about 4 inches long and the males 3 inches. When I bought them, they were sold as S. petricola. But now looking at the pages here, I'm wondering if they are really S. lucipinnis. They just spawned, and I have a few hundred hatching eggs (in ...