Having a problem with green hair algae on LR and in the sand bed. Just noticed two small patches where the algae looks lite brown. Will do a water change tomorrow. Green algae was a problem a few weeks back but I attributed it to overfeeding. 37 gal tank w/ 2 sm. perc, 1 lawnmower blenny (added 2 weeks ago) and purple dotyback and 2 emerald crabs. I had been feeding pellets (2-3 sm. pinches) and a 1/4 cube of brine in the evening daily. About 10 days ago I cut back to 1 item daily. I wonder if I'm still overfeeding. Nitrates and Phosphate are fine so I must be overfeeding right?????