Getting some new substrate this weekend- since by pulling out the sand with the sticky Hair algae I am now down to an inch or less in places. So, will vacuum the substrate and pull out as much HA as possible. Then add about an inch of new ,very well cleaned, substrate on top. I think it may also be my T5 lights. They are toward the front of the tank , and I noticed the algae is much worse in the front of the tank. So, will shut off the t5 lights for a while as well.