Sorry Charlie... I have had a 1.2 group breeding in a 10-gallon tank for a few months now. One of the females actually got sick and died a few weeks ago. Otherwise everything has been smooth sailing. This past litter I saved back two females to replace the one that died. They are still doing great and past weaning age. I also have a male saved in there for a friend, and so far there has been no aggression between father and son even though the son is almost as big as daddy now. There's also a litter of hopper sized babies in there and everyone is getting along.