Well the interceptor treatment didn't stop the problem with my acans. I am now thinking I may have a tang problem. I noticed yesterday, after target feeding the night before, that my Maciliceps tang was visiting every LPS in the tank and giving them a nip to make them spit out the food. That tang would walk through fire for a bite of fauna Marin LPS pellets. The constant harassment could be the cause of the wound that becomes infected. The acans I have caught early and dipped in iodine and moved are recovering. I've read many threads were even well fed tangs can start to go after LPS. Anyone else experience this before?