So... spent the day with family yesterday and came home last night and saw white spots on the fins of the kole tang, yellow tang, and royal gramma. The clowns and the YWG don't appear to have any spots. All fish are behaving normal - no scratching, all are eating well, normal behavior. Well I got up today and checked on them, and they looked a lot better, thought maybe it was just sand or something, because it was mainly on the Kole.
I've been watching them all day, and no spots on the bodies at all, but just looked again, and the Kole has spots all over its body. They look kind of grayish, but I'm afraid it's ich. The only other tank I have available for a hospital tank is a 10 gallon, which is nowhere big enough to hold a YWG, 2 clowns, royal gramma, yellow and kole tangs.
I'll be going to PetSmart tomorrow I guess to get a better tank for the treatment. This sucks.