i had ich breakout in my system. i have done research and found a simple solutoin that worked for me in a matter of days. UV sterilizer. it is not good for a reef tank to constantly run this if you want growth due to it killing some of the beneficial organisms in your reef. i ran mine for 2 weeks and stopped using it. not a breakout of anything since. sure they have medications ect, but to me they might mess with the parameters. with a uv u always have it and its for more universal problems. hope you found this useful.