I have a female Dovii around 9' inches but she is on lockdown for attempted murder of a 10' inch male Jag. I had to put my little 3' inch male Dovii on lockdown for murdering a catfish, then I had to put a divider in the tank because he was trying to murder my 6' inch Tiger Shovel Nose. My little male Dovii is getting quite aggressive to only be 3' inches. I am hoping that when he grows he and my 9' inch female can become a pair. My 3' inch male will probably serve a three month sentence in maximum security, at least until I relocate my Tiger Shovel Nose.