There’s always one fish that wants to be a turd. Mine is my clown, I got him about a year ago as a tiny little fish. Had him in my fish only system, but he was so small he stayed by my powerhead. I would hand fead him to make sure he got food as my other larger fish would scare him. After a few months of him never leaving the power head I decided to put him in my coral tank as is is a calmer tank with smaller fish. That’s when the games began lol. Since then he has paired with my toadstool which is fine. However everytime I have to put my hand in the tank. he goes into straight jaws mode and bites the heck out of me. Luckily he is alright with my anthias and fire fish gobies otherwise he would be relocated again. Just wanted to hear some other peoples experience with these little terrors haha.