I recently just started dosing Dr.Tim's waste away to fight what look like cyano/brown algae. i started light with half dose then went up to 75% and 2 days later i did a full dose well needless to say the algae is gone but my tank is cloudy and my sps look like they are stressing i did a large 75% water change and my skimmer is going crazy taking stuff out of the system i really hope i dont lose anything 2 of my sps are begininng to lose color. i think the product works i just didnt follow directions and possibly over dosed it