Body
Fungus (Columnaris)
Symptoms : White cottony
tufts or patches anywhere on the body.
Info : Body 'Fungus' (aka:
Columnaris) is actually a bacterial problem. I have listed it under fungus because
that is what it looks like and that might be your first reaction.
Treatments : Maracyn,
Clout
Prevention : You can prevent by keeping your betta clean. Disease may still be introduced by live foods.