I have been treating my tank because I have a Blue Hippo Tank that had cloudy eye. I was using Melafix (tea tree oil) to treat because it is the only reef safe medication. Today is day 5 and I was thinking that the tang “T-shirt” would probably not make it. To my surprise not only the tang died but the yellow wrasse “Chiquita” and my flame angel “Flame” as well. I tested all of the water and all water parameters were good. I just called my local fish store Aquatouch and they said it was either due to low O2 or an aggressive bacteria. Probably need to change the UV bulb. Still the other fish were 100% last night. Also the copepods that live in the gravel were all dead as well and he said that the bacteria generally doesn’t bother crustaceans. So who knows. I is not a good morning.
I hope everything else pulls threw. I don’t hear my pistol shrimp clicking so thats not good.