Hi everyone. I'm new to this forum. I need help with a major hair algae problem, I have been dealing with for a few months. Some background, started tank in August it was bought from a very successful reefer and only came with the sand he used plus a about 25 gallons of water from his reef tank which appeared to have no issues. It is a 110 gallon tank with built in over flow and custom made sump underneath has a oceanic 65 protein skimmer(think that's the name/model). I originally starter with a coralife 4 bulb t-5 @ 65 watts per bulb. Switched to exotic sun 120 watt led
fixtures have two of them(tank is 48" wide). I have four damsels, two clowns and a Benny so far for fish, I have a serpent star, about 20 Astraea snails, three turbos, and a mix of about 40 blue and red leg hermits, had 2 emerald crabs but one died, I have two cleaner clams and 1 peppermint shrimp. I added one price of small coral just to see how it would do. I have been dealing with hair algae for a few months now, I have taking rock out and used a toothbrush as I see it on the rock, I do a 25% WC
every week and right before I do I scrub all my walls and razor off and algae off the glass plus siphon the hair off the sand as I remove water. All my parameters are where they should be. My tank will stay clear for a few days after I do a WC
but the hair keeps coming back, please help any advice is helpful. Thank you.