Beta question

[BitsyNaceyDog]

My friend has a male beta and he seems to have grown a bubble ON him. She says it wasn't there 2 days ago. She said he's acting normal and swimming fine.

Does anyone know what it is?


Edit to add a picture:

[Zippy]

What do you mean by bubble?Like a lump or ulcer?

[Christmas_Hamster]

Looks like he is constipated. very badly to. That betta needs to be fasted. Meaning do not feed him for a couple of days. And on the second day your friend should feed him the inside of a cooked pea. Just bite sized pieces one at a time. The pea will help clear his system.

Also what is she feeding him, how often is she feeding him and how much?

[BitsyNaceyDog]

Thank you so much! I don't know what she feeds him, I'll ask her.