My own frozen mix... rope grown mussels, wild caught scallops and shrimp, whatever wild caught white fish is on sale, nori sheets and dulse, a bit of RODI... pulse several times then blend quite a bit. Paste it into piece of plastic egg crate (the kind you would see in a false ceiling air return cutout) on a platter and freeze. Give it a few whacks and it comes out (usually) in perfect small cubes. I feed Omega Reef formula or frozen mysis rarely if I'm out of my own stuff. Dose live phyto as well...