So my Betta fish Eugene has a large bump on his side. I was thinking that it is either a tumor or he’s constipated. I found white transparent clumps with his pellets in them at the bottom of his tank. I don’t know if he spit them out, or didn’t digest them correctly. If anyone could give me pointers on what’s wrong and how to fix him that would be amazing! I’ve had him for 7 months and he used to build bubble nests constantly. It wasn’t until 2 months ago when he stopped but I wasn’t sure why. I use conditioner in his water and feed him mainly pellets. I used to include flakes in his diet but I cut them out after he stopped building nests cause he didn’t seem interested in them and I thought they may have been part of the reason why he wasn’t feeling so good. I noticed the bump about two weeks ago. Thanks for the help anyone!
He’s in a 5.5 gallon tank and it’s heated on average at 80*F.