Hi Ned, Probably the wrong forum, but I'm trying to find out the name of a tetra I bought at your store. It's black, with a gold line across the dorsal edge. The male when it got bigger had a "third" tail, a sword extension between the caudal fin from the center. They were about $16. I thought they were a "emporer" tetra, but the google pictures aren't matching, these are more black. Do you recall what this is?
They actually bred in my planted community tank, so I'm trying to find out.