So my tank is just now almost at the end of its cycle. In conversation, I mentioned that my salinity was a little low, so my gf decided it was a good idea to just dump a cup of salt into the DT. I was unaware of this until I noticed that a few of my rocks had white tops. I tried to turn my Koralias to blow right onto the rocks, which caused some of it to blow of, but after a few hours, the white was still there. Luckily there is no livestock in the tank, other than some CUC. What should I do here - remove the rock and brush it off, or try to brush it off while it is in the tank?