Betta with lump on side

[sharkweek178]

My betta has developed a lump on his side. Sorry that I don't have a picture. He's not cooperating. I'll post one when I can.

I just saw it today when I was feeding him. He still eats well. But he hides more than he used to and sometimes rests in an unusual position. On his side, facing straight up. He seems to swim normally otherwise.

Water parameters are as follows. Temperature: 79.3 degrees F. Hardness: 136 ppm. pH: 7.4. Ammonia: 0. Nitrite: 0. Nitrate: 5.0 ppm.

 

[Innesfan]

Without a picture, and assuming he's eating and pooping, and noting that it's on one side, my informed guess is that it is a tumor. Whether it is benign or not cannot be known. Either way, there's nothing to do about it. If/when his quality of life becomes severely compromised, you might want to consider euthanizing him.

 

[sharkweek178]

 

[sharkweek178]

Without a picture, and assuming he's eating and pooping, and noting that it's on one side, my informed guess is that it is a tumor. Whether it is benign or not cannot be known. Either way, there's nothing to do about it. If/when his quality of life becomes severely compromised, you might want to consider euthanizing him.

The picture I just posted is the best look that I've gotten. It looks bad. At this point, I'll focus on quality of life and euthanize when appropriate.