We also make our own DYI blend--approximately the same as yours. I prefer to use our marjarita maker rather than the food processor. I just like the texture of the food better. One thing my husband does that has worked very well is when I am done making the food mixture, I leave a small amount (1-2 tablespoons) in the marjarita maker (or food processor) and he fills it with RO/DI water then blends it for several minutes. He then leaves the solution to separate in the refrigerator for a few hours. The heavier particals settle to the bottom. He than uses a turkey baster and sucks the mostly clear solution off the top and freezes that in ice cube trays. He feeds his corals with this solution. They absolutely love that food, much more than any coral food we have bought at the LFS.
Great idea. I use a blender myself since I don't have a food processor, and my current fish like the smaller particles, if it is too big they won't touch it.