I just picked up a few frags (candy cane, frogspawn, zoa's, etc ) and have a few other softies and LPS in the tank. I am supposed to get a Green BTA from another member here but am a little worried that It will travel around the tank killing things. Are they poisonous enough to harm other things? I should mention my tank is a bit in disarray right now. I have half the rock cooking to get rid of an algae outbreak. I am switching it out with the other half next week. I do have a tomato clown and a false perc that would probably enjoy the BTA but I don't want to risk the corals too much.