Rod's Original Blend has a good mixture of "seafood" and algae (Ingredients - Whole Shrimp, whole squid, whole oyster, whole clam, whole octopus, perch, scallop, krill, Pacific plankton, brine shrimp, fish eggs, green seaweed, certified raw red seaweed, broccoli, carrot, mini-pellets, baby brine shrimp, rotifers, astaxanthin, beta-carotene, garlic, and omega-3 fatty acids (DHA)) and I use it for a variety of fish and corals.