My mollie had a clamped fin for a day or so because my Nitrite level went up to 1. Then down to .5 with 30% water change. Then 0 with addition of API Quick Start. He seemed fully recovered. Yesterday I noticed him laying down under a plant, but came out when fed. Tonight he is swimming in circles and seems to need to get to the top or oxygen. Nitrite, Nitrate and Ammonia have all stayed at 0 for a little over a week now. Help!
Also note, I have Oto’s in the tank that would not want salt. I know Molies need hard water. My test strips only test GH to 180. So not sure the true hardness of my water. My town water dept reports our water at 17 gpg