Phosphate reduction/ removal is most likely the answer. you have a few choices. Add a
refugium with
Macro algae. If you don't already have one get an inexpensive
phosphate reactor for like 35 bucks and put some phosar or ROWA in there. (you'll need to CHANGE your media in
phosphate reactor more often at first.) Your media might be getting saturated in 2 weeks depending upon how much is bound up in your rocks, tank, algae, etc. Use less media, change every 2 weeks. Use a great test kit like DD merk, Hack, or colormeter or send to AWT.
when you do your water change, take the end of the hose and suck all the algae down like a vaccum. It'll take a few water changes, but it works (especially after the
phosphate remover kicks in)
You must export the same or more nutrients than you put in. Overfeeding, tap water, high
phosphate foods, etc. Use a
phosphate reactor with some phosar or ROWA or whatever, and something to lower
nitrates like a
fuge, AZNO3, or whatever.
check out:
Phosphate and the Reef Aquarium by Randy Holmes-Farley - Reefkeeping.com Phosphate and the Reef Aquarium by Randy Holmes-Farley - Reefkeeping.com http://www.advancedaquarist.com/iss...st2003/chem.htm Reef Aquarium Water Parameters by Randy Holmes-Farley - Reefkeeping.com 
