To Fishking, Don't give up on your tank. I can not believe that these tanks are not cleaned prior to pictures. I have accepted algea on the back of my tank and coraline and that beautiful flat yellow- green algea that is on the sides of my tank and elsewhere. I have never seen a natural reef without some algea, and all the kinds that are in my tank. Phosphates do have to be watched, but lights can add to the problem. Too much light, old lamps must be replaced{ do not understand that connection} but some algea is alright. Soon I am going to post pictures of my tank with the algea. I never clean the back except for the pumps in back. My lamps are all being replaced, slowly but surely and I will see an improvemant in the excess algea. One third water change a month is a must also. I put a phosphate substance in a filter and the airrater mixes the new last water in prepping for the waterchange. We have an already high phosphate level in our well. When I finally post my pics there will be someone who sends a response about my algeal "problem".