Just in the last couple days I noticed these lumps on the side of my fish. I think they got bigger since I first noticed. The fish is still acting normal, actively swimming eating and then begging for more food. None of the other fish have anything like this. They all eat the same things and have for the last 5 months or so. They all came out of the same place with the exception of one. I haven’t watched long enough to see it poop but I haven’t noticed any weird poop when I clean the tank. I added a heater and I will slowly raise the temperature a few degrees in the next few days to see if it clears up.