So this morning I noticed some white bumps on the side of my large clown trigger. He's been in this tank for 6 months, came from another stable, long term tank. All of his tank mates are happy and healthy with no signs of similar spots. He eats, swims, and is as active as the day we brought him home. Any ideas? There is a single dot on his right side, just above the natural spots, and a small cluster on his left, near his eye.

