Below are pics of what used to be a 4 1/2 inch Dovii. I originally used 5 silver dollars as dithers for this fish. The silver dollars grew up in my 360 G tank with some big bruisers with no problem (Parachromis, Vieja, Paratheraps, Amphilophus, Crenicichla). They lasted 1 night in the tank. I woke up to find three dead and two barely alive. This fish grew up in a community tank and always ignored smaller fishes. This is the reason why I placed 4 smaller Dovii's in with it. I had to take the 3 out because this fish was relentless. This is a 210 G tank.