I have had problems for the last week with a sick cory. He has a buoyancy problem and I treated him for Constipation which seemed to work. I had him out of the 29 gal tank for a couple of days, put him back on Thursday afternoon and he seemed to be doing fine and was swimming with the other 3 corys and appeared to be eating. Everything was fine until Sunday morning when I noticed that he was once again struggling to lay still on the bottom. A couple hours later he was back floating at the top of the tank with his tail down and head and belly up. I put him in a breeder box (about 4 inches deep, 3" x 6") with about a half inch above water so he could get to the top if he needed to. He would lay at the top, tail down, belly up and then just drift slowly to the bottom with out moving. He would even lay that way on the bottom for a few seconds. He is still struggling and continues to have problems staying still at the bottom. He floats up or more often over onto his side every time he gets still. I don't think it is constipation as there is plenty of trash which I assume is poop on the bottom of the box. There is very little way for anything else to get into the box so I don't think it came from outside. I'm beginning to wonder if this is more serious such as a bladder infection and if there is anything that can be done. If there isn't anything that can be done for him, I would rather euthanize him and not have to watch him struggle and suffer. Thanks in advance for any advice.
PS, the other 3 corys have been in there for a week and are doing fine. All water parameters are fine. I also have gotten a big Cyanobacteria problem. Could eating that cause a problem for him? It doesn't seem to have effected the others.
PS, the other 3 corys have been in there for a week and are doing fine. All water parameters are fine. I also have gotten a big Cyanobacteria problem. Could eating that cause a problem for him? It doesn't seem to have effected the others.
