If you are not convinced that a particular fish food is providing enough nutrition to your fish and corals, then you can make your own special blend to include everything your aquarium needs. Many hobbyists buy a wide variety of foods and food supplements, often mixing them together into a superfood that targets every animal in the tank. This blend can consist of frozen foods from your fish store, or even foods designed for human consumption. The composition may include brine shrimp, mysis shrimp, krill, clam meat, various eggs, zooplankton, phytoplankton, silversides, sheets of algae, or whatever you think you need. Just make sure whatever food you use is free of any contaminates that could have a detrimental impact on your water quality.