I am at my wits end with our Betta fish. We have had him 3 years. A few weeks ago I thought I saw a white area vertically on the edge of his posterior tail, nearest his distal tail. Then I thought maybe it was always there, and I hadn't really looked hard before:
Fast forward and his tails are being eaten away (on the distal and posterior) and its is getting pretty much flush toward the body of him.
At first I thought this was a fungus and used the jungle fizzy tabs for fungus, his condition only got worse, so I tried the life rescue because I was thinking maybe it is something else. Again this did nothing.
The white area is getting larger and larger and its deformed looking and crusty or raw looking... also there a hole clean through his tail fin, such that only the ray is visible connecting it to the body but not the fin part.
Now I am thinking a bacteria, columnarius or something along those line?
My fish has been eating fine the whole time (4 pellets, twice daily). He has grown into a fairly largely Betta...looks twice the size of the bettas for sale at the pet store.
I have some tetracycline and I'm thinking I should try it. Its just I keep giving him meds and nothing is helping but I think something must be done or he won't live all that much longer.
He is in a 10 gallon tank, his ammonia and nitrites are 0 ppm
. That's all I check for. I have live plants in the tank. I put in some new live plants in roughly the same time as the 'white' stuff appeared. Coincidennce perhaps?