Woke up to a nearly dead banggai cardinal this morning. Poor thing was on its side panting and couldn’t right itself. It was fine last night, my parameters are all perfect and no corals or inverts show any signs of distress. I did add a bag of PhosGuard last night; I rinsed it well first. Could this be the culprit? I have a Royal gramma and a YWG/Tiger pistol as well. The gramma seemed okay but was hiding in her rock which isn’t abnormal. The YWG has been hiding since I got it Monday but I saw it come out to eat before I added the PhosGuard last night. The only other culprit could maybe be the pistol?
