I have 2 males in a divided tank 10 gal. heated and cycled tank. I made the divider myself using the instructions found here. I got home tonight to find they were in the same side. I don't know how Sub-zero got into Pokey's side but there they are pretty beat up. Sub has fin damage, and what appears to be some gill damage as well. Pokey is worse off. His fins are shreaded and he is missing his left eye. I am at a lose about what to do. I moved Subzero back and fixed the place he got thru. What do I do to help my boys? I don't think Pokey will make it. I feel horrible about it.