Hi, I just joined this forum. We have a 9 yr. old pond, 1000 gals. We have 13 fish, all fancy goldfish, 2 of them are new babies this year. My concern is my oldest and dearest little friend, Laser, also 9 yrs. old. We are in Michigan, and the pond temp. went down to around 45 one night last week, now it is back up in the 60's, as its 84 degrees (air temp.) today. Quite suddenly, as in overnight, I noticed a bunch of large white bumps, about the size of BB's, on his tail and pec fins. I actually noticed these white spots earlier this summer, but they were merely white dots, not raised or large at all. They just got big when the water temp dropped. My question, what do I do about it? I did add salt, as with winter coming, I usually do that anyway. Salt level is now up to 0.14% (a little higher than I wanted). I am getting some really scary advice around the internet, but this site seemed to think its not as bad as I am thinking? Laser is acting totally normal, swimming with the others, eating like usual, not at all sick.\n\nAlso, pond is in great shape - parameters are all within range, however pH is a bit low right now at 6.8, not sure why, but we did just do a water change a week or so ago. No ammonia, no nitrites, KH is normal, etc. I attached a few pics of the pond.\n\nI have uploaded 2 pics that should show what I am referring to. Laser is the red and white shubunkin. The white bumps are primarily on his tail, but some are also on his other fins.\n\nAny advice? Any treatment?