My betta is at the top of his tank almost vertically down. He has not eaten for 4 days. My mom tried to give him a pea but he doesn't seem to have the strength to get it/want it. I think he is constipated. Also there are white cottony tufts on his fins and body. At first I thought is was that pine cone thing but upon further inspection his scales are NOT raised. There are also pin like holes in his tail fins.
What should I do? I think that it is Columaris Disease.
The temperature is 76 degrees without a heater. I saw this "Treat all" medication at Walmart but I'm not sure if I should use it.
Any help is greatly appreciated.