I have 3 fish scraping against the sand in the tank. I dont see white spots yet to indicate ich. The 3 fish are eating well, and are active. I'll continue to monitor but I'd like to try to head off whatever this is.
Also I have some algae on top of the rocks closest to the water surface that is green. I also see spots that are tanish in color, further down the rock. What steps do you recommend, pull rocks out and soak in bleach and water? How much bleach per gallon of water is used?