Hello. My poor betta! He is in a 5 gal tank. I use bottled spring water (I have well water). The pH 7.2, ammonia 0, nitrite 0, nitrate 0. He has been in the same tank with same silk plants for about 3 mths. I have worked diligently to cycle his tank- I think I finally achieved bacteria homeostasis? about two weeks ago. Was monitoring water chemistry every other day, using seachem prime as needed, adding tetra bacteria with water changes (conditioned before adding). I didn’t think it would ever cycle and then I added some sludgy stuff from my son’s fish tank
and the chemistry balanced out- only now my betta is sick!!! I put jungle fungus clear in this morning and upon closer inspection at lunch I think he has Velvet. Can he be saved? Can I add anything to his tank to treat it or 100% water change and treat with something else?