B1gJ4k3 Posted October 6, 2021 Share Posted October 6, 2021 A few weeks ago, I picked up 5 black mollies form my LFS and put them into a 75 gallon quarantine tank, along with some others. They seemed OK to start with, but eventually, I started losing them and they seemed to be having trouble swimming, kind of wiggling rapidly from side to side and some of them seemed to have some swim bladder issues because they would have trouble staying horizontal in the water. I moved them to their own 20 gallon quarantine tank, put some salt in, raised the temperature and fed peas (which I don't really think they ate). Two more died in the 20 gallon quarantine, so I went back to normal feeding and temperature, but now I'm down to only 2. One seems OK. She seems to be breathing rather rapidly, but I don't know if that's just stress of me observing her. She's eating normally and is pretty active in the tank. The male, on the other hand, just doesn't seem right. He also breathes somewhat rapidly and also seems to have trouble swimming. He's got a little bit of the wiggle going on (which apparently is called "The Shimmies" or livebearer disease--although I'm not really sure that's the problem based on my water parameters below). His back also seems to be kind of weak and his tail is often either curved up or down and he spends most of his time either at the top or the bottom of the tank. My water parameters are fine. No ammonia or nitrates, really for that matter. Hardness and buffer seem fine (although, that's admittedly an area I don't know much about). PH is buffered up to 7.6 with crushed corral in an HOB filter. Temperature is now 76ish. I'm not really sure where to go from here. At some point, these two obviously bred because I have two little fry swimming around in a breeder net in the same tank. The rule usually seems to be "if they're breeding, they're healthy," but with livebearers, it's not terribly difficult to get them to breed. What should be my course of action here? Do I treat the whole tank (including the fry) for something bacterial? Do I further isolate the male and see if it's a swim bladder issue with some epsom salt baths? Do I risk moving the fry and the female to my display tank? Given the history with the other three that died, is it just a genetic thing and he's a lost cause? Not sure where to go from here, so any advice would be much appreciated. Link to comment Share on other sites More sharing options...
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