Hi Adam,
your corals look so awesome, so why are you trying to lower your phosphate levels? You even wrote a whole "Phosphate Ramblings" about your skepticism over the overly prevalent, and maybe not helpful phosphate lowering attempts that we see in the hobby.
Just curious as to what benefits/changes you expect for your system by adding this potentially massive nutrient sink. Are you going to switch to a high import-high export system with regards to nutrients?
see post #28, regarding my make up water phos levels. Ultimately, I don't really pay much attention to my Phos levels either way.