So I have a 95 gallon reef aquarium running for about a year with 2, 54watt t5's and 2, 250watt metal halide lights. Protein skimmer, 350 marineland filter, powerhead and fan. Filled with about 12 pounds of sand.. i have dead coral rock, about 30 pounds. Then i have 7 pounds of actual live rock. 2 leathers, 4 tortch anemones, Kenya trees, flower like grass patches, and a candy cane coral. my levels are all fine except for phosphate which is pretty high. My rocks all have a red dirty looking alge on them. I was told this is from the high phosphate. What is the best way to get rid of my phosphate? Or to lower it? I used to use tap water but recently switched over to purified bottled water in hopes to lower the phosphate problem. Any ideas, suggestions and advise would be greatly appreciated.