[Jayson]

Troy,

The point that I was trying to make is that he has to establish if it is phyto in the first place.Take a sample down to local university if you do not a have microscope. If he establishes that it is phyto then he can look into something that will eat it. If he places a clam near the surface he will hve enough light for a lower light calm(squamosa or gold max) The gorgornians that eat phyto are from deeper waters and do not need much light to thrive. I also said in my post that he would have to make sure that all water parameters are good. when I feed my clam system the water turns about 1/4 as green and it only takes them about 4 hours to turn it back to crystal clear.