MollyMomma Posted March 2, 2021 Share Posted March 2, 2021 Hi, I've never posted here before. I have a planted freshwater 20g with 4 mollies in it, some fry & a juvenile BN pleco it's been running for about 1 year. I have not had illness in it since August- there was 1 fish with a fungal infection. A few days ago my male sailfin molly started exhibiting odd behavior. Tail standing, head up, and spinning around. I cant find any other symptoms. I've kept mollies for upwards of 7 years & have never seen this before. No others in tank seem effected. I added new plants a few months ago but I always QT them first. Parameters: Ammonia: 0ppm Nitrate: under 20ppm Nitrite: 0ppm Chlorine: 0 GH: very hard 150-300ppm Alkalinity (KH) 60ppm PH: 7.6 temp is set for 78° Tonight I came home & he was curled up at the top of the tank inside a floating water sprite with 2 week old molly fry. Im baffled. I posted this on Fishlore a few days ago but no replies. Hoping someone can help! Im unsure of how to upload a photo. Link to comment Share on other sites More sharing options...
Fish Folk Posted March 2, 2021 Share Posted March 2, 2021 (edited) To upload a photo, click "choose files" at the bottom of the text box you're writing a reply in, and upload a photo from your computer or your phone. It sounds to me like your molly may have a damaged swim bladder. Sometimes they repair themselves . . . sometimes not. Now whether it is due to another sickness, or to some hard knock, it's hard to say. Off hand, I do not know what to recommend. You might look up "damaged swim bladder" or "how to treat a damaged swim bladder" in a search here on the forum or online and see what comes up. Edited March 2, 2021 by Fish Folk Link to comment Share on other sites More sharing options...
MollyMomma Posted March 2, 2021 Author Share Posted March 2, 2021 Thanks, that was my first thought- but I've never had to deal with swim bladder so I'm a little in the dark. Let me try a photo. its like he is stuck in a vertical position, and spinning sometimes, tonight He's curled up in the water sprite. He is part of my breeding pair, so im quite fond of him. I did a WC today & took out 6 gallons. Then added 7 new. Did filter maintenance & im not sure if it even helped him. I will research swim bladder more ty Link to comment Share on other sites More sharing options...
Colu Posted March 2, 2021 Share Posted March 2, 2021 (edited) If it swim bladder I would Qarantine if you can don't feed for a couple of days and add aquarium salt 1 table spoon for 2 gallons after a couple of days offer deshelled peas some swim bladder problem are caused by a bacterial infection you could try treating with maracyn Edited March 2, 2021 by Colu Link to comment Share on other sites More sharing options...
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