Trying out some new foods for a little more variety and picked up some ocean nutrition brine shrimp plus. I already rinse my PE and Hikari mysis but this new food is "enriched" with vitamins,enhancers, and flavor. I'm worried that rinsing may be washing away the extra goodies in the food so for now I'm just feeding it straight. It sure knocked down my skimmer so I'm guessing I should probably be rinsing.