I don't have much experience with these guys- I did take one in once that was unwanted. To me it looks like *maybe* you have 2 males, *maybe* even 2 species as well. That isn't very helpful, but different species do come in- you might want to check into that possibility...
Maybe we'll get lucky and someone with more experience with them will come along and post. I'm curious to find out if my "educated guesses" are correct.