I confess, I haven't been very attentive to my tanks over the holidays. Tonight, I was looking in my 29 gallon and admiring my two albino bristlenose plecos when I saw several little (.33 inch) dark catfish skimming the bottom and all over the decorations. I spotted about 10 of them. They are dark with some speckling/striping. Are these perhaps fry from my Bristlenose cats? Would two albinos produce dark fry? They look happy and healthy, so I don't plan to mess with them for now. It's a friendly tank without any mean fellows in there.