I've read through a lot of posts here and can't seem to find a definitive answer as to what might be wrong with my betta, Mr. Norman. I got him in August 2009 from a friend who had him for a year before that. In February of 2010 he started to develop a small bump on one side near his tail. I treated him with "Betta Fix" and continued to change his water weekly. The person at PetSmart suggested that it was an internal parasite and that I could not do anything to treat him. The bump continued to grow.
In June the growth reached the top of his back and started to grow on his other side. As the bump gets larger his scales seem to stretch out. There are no red streaks, his appetite is fine, he swims around a lot.
This week the growth has become large enough that white can be seen in one spot where it looks like his scales have stretched too much or fallen off(?) Photo taken tonight is attached. The one of him at rest is of the bad side, of him swimming is the other side where it's spreading.
I would like to try to treat him with something, if there is anything out there. Do you have any idea what this is? Do you have any suggestions of how to treat him? I'm quite attached to Mr. Norman. Please help!
Here is all his information:
1.5 gal bowl
Freshwater with a bit of aquarium salt (.5 - 1 tsp.)
I have had Norman for 1 year, his previous owners had him for 1 year.
Only fish in bowl
Water is room temp 78 - 80
Only glass rocks as decoration
No filtration, heater, etc.
Water is changed weekly nearly 100% with water that has been treated with decholinator, "Betta Fix", salt, and has been sitting OUT ON COUNTER for at least 24 hours.
Fed 4x's daily 3-5 pellets