I target feed my acan's & blsto's with frozen mysis shrimp, you can buy them in cubes. With the acan's it's best to catch them just after the lights go out when the tentacles come out. Blasto's you can do anytime, just make sure to be gentle, I hold the baster right above them and let the mysis fall out. Once it hits the skirt it will close up around it.
Not sure about SPS (Above and beyond me).
I do have a frozen food from Sho-Tank, it's called Red Reef Food. It's cyclopzees, rotifers, zooplankton, phytoplankton, copeopods, Golden Pearls, oysters, mussels, shrimp, squid, tuna, fish roe, scallops, red snapper, brine shrimp eggs, crabmeat, krill, mysis, nori, selco & garlic all tossed in a blender and frozen in a packet. I just break a little bit off once a week and let it thaw in a little cup of tank water.
It's made as a whole tank food. $20 for a frozen ziplock bag full of it. If you (or anyone else) want to try it I'll give you some. I doubt I'll ever use all of mine.