I had mine with semi aggressive cichlids and it had no problems hanging with them. 1 per tank. Mine did figure out it could suck slimecoats off and went nuts over it. once they figure it out they won't stop. keep them away from fish with sensitive skin. I had a 5 inch ceylon puffer( the green one?) and it was almost killed.
I have also notice that they do chase silver scaled fish: silver dollars etc. The silver dollars never had any problems eluding him.
I have also notice that they do chase silver scaled fish: silver dollars etc. The silver dollars never had any problems eluding him.