5 gallon tank
Elite filter up to 10gallons
black neon, has been missing half his face since I got him (3 weeks to1 month ago). eye appears shrunken in the skull, possibly gone altogether. gill was already partially diminished, appears worse now. eye appears more shrunken. face appears shiny on the side with the missing eye, has been like that since I got him.
He has always swam slightly tipped to one side, I figured it was related to the eye. now appears to be tipped more and earlier this evening was doing loops near the top of the tank. He appears to have some problem swimming, I fear dropsy may be setting in.
Filter signaled maintenance needed, the carbon filter seemed clogged so I changed it and added some cycle. (a few hours ago). filter signal went away so I figured that was the issue.
tested ph, ammonia, nitrate and nitrite. Nitrate was 50, Nitrite was 0.8. both were on the high/dangerous side according to the test kit (nutrafin kit) and the most recent water change was done 2 days ago. I did a 20% water change right away, approximately 1 hour ago. using aquaplus to treat the water and added cycle as well. adjusted the temp before adding water to make sure there was no big shock to the fish. added water slowly so as not to cause shock.
Now he is not doing loops as much and not hanging out near the top as much, but he still seems to be having some issue swimming. I am worried about the gill diminishing too.. does it sound like an infection? I can't get a pic because he is moving around too much.
I fear he may not make it through tomorrow :(. the last time a fish did this he was dead the next day. I will fast the fish in the morning and see how he is doing when I get home from work. I did notice him pooping a few days ago, so I didn't think he was constipated but his new symptoms are making me think so.
anything else I should do? ideas? thoughts, questions, comments?