Hi - I have a red hair algae that I can seem to get rid of. I run my lights from 2-9pm every day. Also I noticed that I am having some cyano returning as well - am assuming my nitrates are a bit high, but I haven't tested them lately. The guy at my LFS suggested that I pick up a Sally lightfoot crab, which I did about 2 weeks ago. I am only seeing the algae grow... I am considering a 3 day black out. Any thoughts?