I have FOWLR display on 2.0ppm copper for 2 weeks now. Planning on another 2 weeks but.... The Goldflake angel is showing signs of stress to include feeding unenthusiastically, listless swimming (sometimes a quick circle and a bit unbalanced as he descends) and hiding in the rocks. Not normal behavior for sure. Also noticing that the emperor angel is showing some early signs of stress also with vertical “glass surfing” movements. He’s still eating robustly while the GF is eating lethargically. Thinking it might be time to slowly take copper out with large water change and carbon and hope that the 2 weeks at 2.0ppm did the trick in treating suspected ich/or velvet. No signs of any parasites at this time......I know the protocol is 30 days but the stress might kill the angel’s. (FYI-no twitching, flashing, spots or powdery substance). I’m worried as these are my favorite fish. The tank is very large, almost 8’ long, so there’s plenty of room and water volume...
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