Mine was a precious little male Msobo deep (Lake Malawi Mbuna). I got him as this tiny yellow juvy with a few specks of dark on him (if you look in the picture you can see the blue- sorry for bad picture, btw).
He'd been swimming peacefully in my tank for about a week before he started really changing- he ended up this breathtaking almost navy blue with electric blue stripes- he was prettier than pictures I found on the net. He was still pretty small.Well, he killed:
6 Yellow-tail Acei
1 Clown Pleco
4 Cory Cats (Adults)
It was so awful, I dreaded going to the tank first thing in the morning, to see who had died that night. He didn't stop his murderous rampage until I dumped a whole bunch of other fish in with him (having to buy more Msobos and some Hongis online since they're next to impossible to find here). Then, my Red Zebra male started breeding and they had horrible fights- same with a Hongi male- who got an injury, then fungus which led to the crash of the ENTIRE tank. When he and the Red Zebra would battle, on the rare ocasion he lost, he would turn extremely pale, losing the electric blue, until he swam into his cave, then picked on the females and weaker males to feel like a man again- then he would be pretty again.
So, if you count the tank collapse precipitated by him, he wiped out an entire tank and committed suicide.
