So we are the killers of fish. All of the coral in our 90 gallon are doing great. The tank looks so good right now...except it doesn't have any fish in it, lol. A few months back we had yet another ick outbreak that killed some of our fish so we decided to catch all the fish and do the quarantine thing. We're coming up on 76 days next month so we're almost at the point were we can put the surviving fish back in the tank. There were three fish in QT, a clownfish pair and a yellow watchman goby. I did the TTM to take care of the ick problem and then it was just a matter of monitoring the fish and waiting for the 76 days to be up. Unfortunately last week I noticed a punch of spots on one of the clownfish that didn't look exactly like ick. A few people said it looked like velvet when I showed them pictures and suggested I start treating with copper. Treating with copper terrifies me, it's why I did TTM at the start of the QT process. And sure enough 5 days into the copper treatment the yellow watchman goby died. It wasn't showing any signs of being sick before the copper treatment so I'm pretty sure that's what killed it. I can't read the copper tests that well but I think I accidentally raised it to high, it's somewhere between .5 and 1. So now I'm doing a bunch of water changes to get the copper out of the tank and I'm just going to monitor the remaining clownfish for the remaining weeks until the 76 days are up and toss them back in the display tank. With the luck we've had with fish I would not be the least bit surprised if they died 2 days after we put them back in the tank. Sigh.