ok start off from the start ok i bought a datnoid (3 in) that is very stable. he was living with a JAG and a RED DEVIL and the dat was fine. then 4 days later i got 2 datnoids from the same guy, and my 1st dat was making trouble to them. so i took out my 1st dat for 3 days and put him in he was scared of the dat (hiding behind the power head) that was slightly bigger than him. so i took out the bigger one and then my 1st one was swiming around again! what should i do!