So I noticed some white spots on my tang and I'm not 100% sure of what they are. If ich is the size of a pin dot, then these spots are about the size of a pencil dot. There are maybe 5-6 per side of the fish and the tail has a little spot. It doesn't really look like ich IMO. It doesn't really look like velvet either since there aren't any gray spots developing. Any ideas? The spots developed over a time when I was out of town and the tank was only being fed pellets. I have since resumed garlic and selcon soaked mysis along with Rod's. Little bit puzzled... I've seen ich and velvet but this really doesn't look like either. Definitely not lympho. No flashing, swims around normally, clear eyes, eats like a pig.. Any ideas? Not sure if it matters, but when the lights have been off for a while and i turn on an ambient room light, none of the spots are present. Fish color fades as normal. Other miscellaneous tank factors include a recently added tilefish - maybe they fight over the same sleeping spot or some other cause of stress. Alk swings due to some dosing issues. Fluctuating between 7-9/10 dkh. Thx in adv. I know it's hard to diagnose without a picture, but I don't have one available at the moment and I doubt you'd really be able to see anything with the equipment I have. I'll give the 100mm a shot tm, time permitting.