I have seen them try to corner off the tank (240g) even noticed when she appeared to be holding eggs but nothing positive. It's my opinion that they need more room for sure just to manuvier (sp) I am not giving up on them being a pair. I have arranged to donate them so hopefully they will have success in there own 1300g aquarium and I can get access to some of the off spring. I will still be updating them when I have time to get down to there new future home.