I have a 38 gallon QT, and am quarantining a CBB and a magnificent foxface. The've been on 1.9ppm copper for about 3 weeks. A couple days ago, I reduced the copper to .5PPM through water changes, and added carbon to the HOB. The carbon didn't do anything after two days, but thinking that .5PPM is low enough anyway, I went ahead and added two packets of API General cure this morning, thinking I'd observe the fish for a while before adding two more packets.
Then I noticed the CBB twitching. I don't watch the fish in the QT that much, so it could be that he was doing this before, but I don't think so. To be clear, he's not twitching constantly, I only see it if I watch him for 5 minutes or so. Thoughts? Could the GC have caused this? Anything to be worried about? Should I go ahead and add the rest of the GC anyway? Here is a video of the twitching:
youtube.com
Then I noticed the CBB twitching. I don't watch the fish in the QT that much, so it could be that he was doing this before, but I don't think so. To be clear, he's not twitching constantly, I only see it if I watch him for 5 minutes or so. Thoughts? Could the GC have caused this? Anything to be worried about? Should I go ahead and add the rest of the GC anyway? Here is a video of the twitching:
![youtube.com](/proxy.php?image=https%3A%2F%2Fi.ytimg.com%2Fvi%2FlUXU55PDZZk%2Fhq2.jpg%3Fsqp%3D-oaymwEoCOADEOgC8quKqQMcGADwAQH4Ac4FgAKACooCDAgAEAEYPyBTKGUwDw%3D%3D%26rs%3DAOn4CLAbv1riMnEzadduwUz9KBOaVJogKA&hash=d707963789f4b2c765337965a633a6c4&return_error=1)
Twitching CBB
![youtube.com](/proxy.php?image=https%3A%2F%2Fwww.youtube.com%2Fs%2Fdesktop%2F58a4d39f%2Fimg%2Ffavicon_32x32.png&hash=cbd737ece8f609171a9df711e73e347e&return_error=1)