hello, a couple of days I noticed a bump on the side of my gold fish and I looked some stuff up so I decided to do a lot of water changes to see if something in the water was effecting it. But sadly it’s only gotten worse. I will upload a picture of the fish and let me know what you think. Also none of my other fish have any bumps or growths, also all the levels are great ammonia is alittle high but I’m lowering it slowly!