It's being five months so far I installed my 10x10 double sided scrubber ( CFL light bulb 55 actual watts on each side). From last post my Nitrates were 3 ppm and still the same but phosphates went down from .10ppt to .08ppt. At the moment I'm alternating sides for cleaning on scrubber every seven days but the algae growth is so thick is getting really hard to take off and scrubber it's really heavy. Is this normal? I collected 7.6 oz of algae on one side. I'm feeding 8 cubes of food daily.