I get that this should be in coldwater illness, but since that forum gets a fat load no attention, I'd really appreciate it if the mods could leave it out in the general section for a while before banishing it there to die. I recently saw that there appears to be some growths showing inside of my kirn oranda's wen. To be honest, I didn't notice these things until yesterday, so I'm not sure how long they've been there or how much they've grown, but they seem to be distinctly different from the regular white wen pimples that can show up in hooded goldfish. As far as params go, ammo and trite readings at 0, and trates rarely have a chance to get up to 5ppm, with my daily 50 to 75% water changes. Haven't checked kh or gh readings from the tank, but my water is generally very soft and without buffering capacity right out of the tap. Not sure if this has any bearing on the issue, but only 1 fish is showing these sort of growths, and all are still eating well, swimming actively, and pooping normally. Hopefully this is enough background info. On to the nodules. At this point, I can see three. They are all along the lower jaw line/gillplate area of the fish on one side, and appear to be a creamy yellow color with small red veins emanating from them. Like I said, they are distinctly different from the regular wen pimples, and are clearly embedded within the wen itself. All attempts at documenting the issue with photos have failed, and even in person, you have to somewhat strain your eyes to see it. A cursory google search hasn't turned up anything that quite matches the description, so I turn to your collective experience in hopes of getting an answer before this thing gets substantially worse. Thanks in advance for your time and input.