Originally Posted by bettablue
I have a betta w/ a lump too and I was wondering what it means? is it permanent?
I'm not sure but he had some slight inflammation in the left gill too.
That seems to have gone away (the insides of gills are naturally red so it's hard to tell but there's no swelling and he's happy and not gasping for air) but I think that may have been connected.
He also wasn't eating much, he may have had an infection in his mouth or something, or in the throat. It's really hard to tell. I did some reading online and some people's Betta's just have tumors and lumps or cysts, as humans do sometimes.
If your Betta shows any strange symptoms I recommend a water change and for things that seem like infections, some salt.
That has helped me clear up all problems so far. He had some problems before with fungus or something I believe, and this time he obviously had a kind of infection somewhere or more fungus. A water change and some salt both times helped him heal naturally.
However if you suspect constipation also (unrelated to your case but as a rule of thumb) I understand salt isn't good as it causes water retention and further bloating. Also, salt shouldn't be used all the time. I used to use it all the time but I've stopped that now because according to advice I received here from ppl who have been in this a long time, it can cause the Betta to become accustomed to it and make the efficacy of salt weak at times when you really need it.
That's all I know, good luck.