I have 3 false Percs in my 165, a pair of cinnimons & a maroon in my 116, a tomato clown in my 48 frag tank & 2 true Percs in a 30, never had ANY of them even come close to my hand ever. I only clean my tanks by hand with a razor blade. The only fish that ever come to play is my cleaner wrasse. But yes they can be aggressive for what ever reason.
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