Oh yeah. Those Ocean Nutrition frozen foods -- those are the gel cubes right? In my experience, fish don't really like those! Try Emerald Entree instead. ;)
Here's what it says online: Extra algae with fresh seafoods make this a gourmet natural food for herbivorous marine and freshwater fish. Developed by aquaculture biologists to duplicate a natural coral reef diet, this formula includes Caulerpa algae, stabilized Vitamin C, and other immune boosters. Excellent for Surgeonfish, Angelfish, Butterfly fish, African Cichlids, Plecostomus, and other algae eaters. 70, 1/2" frozen cubes
Ingredients: Plankton, gel binder, spinach, shrimp, krill, clams, krill hydrolysate, lettuce, peas, sardine meal, salmon egg oil, squid, kelp, lecithin, casein, spirulina, cod liver oil, paprika, vitamins (choline chloride, ascorbic acid including stabilized vitamin C, vitamin E supplement, niacin, thiamin mononitrate, folic acid, calcium pantothenate, riboflavin, menadione sodium bisulfite complex, vitamin A acetate, pyridoxine hydrochloride, vitamin B12 supplement, vitamin D3 supplement, beta-carotene supplement, biotin), amino acids (dl-methionine, taurine, lysine) and trace elements of manganese sulfate, zinc sulfate, copper sulfate, and sodium selenite.