My tank has been cycling for 3-4 weeks. The only things I have in my tank other than LR and substrate (crushed coral) are 2 damsels. I have noticed in the past few days some white spots on the tail of one of my damsels. I can't recall if these spots were there when I first got the fish or not. Is it possible that my tank already has ich?? The little guy is still very active and I have not seen it rubbing against any of the tank decor. The other damsel is completely fine as well.