One of my bettas has cloudy eyes. I've had him for about 8 months, and when I got him his eyes were clear and he seemed to no problems with vision. He responded to my approach while I was still several feet from the tank. Now both eyes have a white cloudiness in them or a white cloudy film covering them - not sure which. His right eye is worse, but it is there in both eyes. The eyes are not protruding more than usual, and he lacks the white skin stretched around his eyes that is often mentioned in descriptions of popeye. He seems to be having vision problems, as he often misses his food pellets on the first try, especially if they are on his right side. In addition, his tail and fins are ragged, but show no indications of infection
, and there is nothing in his tank that could be ripping them, so I think he's nibbling on them. He is eating, is active, and appears otherwise healthy.
He has been housed in 1/2 a divided 10g tank most of the time I've had him. A couple of weeks ago I moved his roommate into another tank, did a complete
water change (to keep the cycle from crashing I kept the filter media
, plants, rocks, and most of the gravel in the old water until the new water was conditioned) and gave him the whole tank. The tank is filtered and cycled, and I change about 40% of the water every week or so. Temp is at 82 at the moment, and I have been using aquarium salt with most water changes, though I didn't add any during the last water change since it didn't seem to be doing anything beneficial anyway. I'm not where the tank is right now, so I can't give you current stats, but every time I test I get 0 ammonia and nitrites and low nitrates (usually around 5 - 10, sometimes a little higher, but always under 20 ppm).
I've been trying to find some information on what might be causing the eye cloudiness and how to treat it, but all I can find is info about popeye, or cloudiness with popeye. His eyes aren't protruding any more than normal, so this isn't very helpful. I have some Maracyn II, but haven't used any yet. I really don't like using antibiotics unless necessary. I don't even take them myself unless I'm certain that I have a bacterial infection and it simply isn't going away on it's own.
Any suggestions? Things to try before or other than Maracyn II?