Please help, my 6 yr old id shark, got torn apart by aggressive fish that my fiancee put in there, fish are out but half the fins are gone, and the stomache is cut open with a layer of skin hanging down. Will he survive. He is my pet and i love him to death. i AM extremelly upset. Any advice would be appreciated. Thanks. PS i know to check status of other fish, i have been doing this for ten yrs, it is my fiancee who's the idiot.