I've been using Rod's as a primary food source as well, primary because I bought a pair of Rod's Onyx clowns. I looked at the ingredients and it seems like something I'd create myself if I were to create a "blender-food" -- in other words -- a hodgepodge of ingredients that could feed the entire tank, not just the clowns. I'm also feeding mysis and plankton soaked in Selcon.