Ok, so i've got a 17" male umbee and a 12" female in a split 180g. I've tried the method of breeding where you put a grate in between that only the female can go through, but she seems too scared to ever go on his side. If that is the case, i don't want to force them together, but i really want to see if they can breed. Does anyone have any ideas short of a 5000 gallon tank?