I've had two fish deaths in my RSR 350 over the past few days: first, a juvie lemonpeel angel, and last night, a goldeye (bristletooth) tang. I take about twenty minutes to look over each of my builds each day, and I didn't notice any symptoms -- breathing seemed fine, no flashing, no swimming into the powerhead flow, no spots -- and both were eating well the night before they turned up dead. Ammonia is at 0. This is a fully-cycled tank, up two months, and I used live rock to do it.
The fish were sharing the tank with four other survivors: a blue-headed goby and a frail canary blenny (now in quarantine), and a niger trigger and a juvie flameback angel. I can't find any spots on the fish in the display, and I spent about half an hour looking at the two in the quarantine: the goby's pectoral fins are a little dull, but that's it. The trigger's spent a bit of time with the cleaner shrimp, but isn't reclusive and is its regular gluttonous self at feeding. That's also true of the angel (minus seeking out the cleaner shrimp).
I'm thinking about pulling the two out of the display and dose copper for thirty days even without symptoms, but am worried about stress. The trigger seems like it could survive an atomic bomb, though. Thoughts?
The fish were sharing the tank with four other survivors: a blue-headed goby and a frail canary blenny (now in quarantine), and a niger trigger and a juvie flameback angel. I can't find any spots on the fish in the display, and I spent about half an hour looking at the two in the quarantine: the goby's pectoral fins are a little dull, but that's it. The trigger's spent a bit of time with the cleaner shrimp, but isn't reclusive and is its regular gluttonous self at feeding. That's also true of the angel (minus seeking out the cleaner shrimp).
I'm thinking about pulling the two out of the display and dose copper for thirty days even without symptoms, but am worried about stress. The trigger seems like it could survive an atomic bomb, though. Thoughts?