Mr. Aquaforce
Aquarium Advice Freak
My 55 gal community tank has these small "salt grain" like dots all over the slate, driftwood, leaves, and subscrate, some of my angel fishes have 1 or 2 dots on them and one has a dot on its fin so not entirely positive to confirm that it is actually ich or not (theres no changes in behavior) other than the two pairs fighting over parts of the tank most the time.