I would not remove the filter sock. It is hard to find a single food source that will feed the variety of coral that you want to have. Phyto plankton is a food source that is commonly over fed also. Products like coral frenzy and coral extacy are good food sources because they are phyto and zoo plankton enriched. I personally count more on zooplankton and high lipids. I also shut my return pump off when I feed and let the power heads keep the food suspended and moveing around so the coral and fish can have plenty of time to feed. The filter sock will catch excess food that does not get consumed during feeding. Excess food that gets trapped in your fuge will eventually effect your water quality.

You might want to consider adding rods food or mysis to your feeding plan. Good all around food. I also get allot of my food from these guy's.
http://stores.aquaculturenurseryfarm...StoreFront.bok.

Great company and their zooplankton product. Coral extacy is one of the best foods I have ever used