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sera guide - Marine aquariums

38 9. Regular maintenance Staple diet Marine fish require much more iodine and other minerals than freshwater fish. More than 50 ingredients in sera fish food ensure feeding the aquarium inhabitants a balanced diet according to nature. This supports dis- ease resistance and prevents deficiencies. All sera foods are very low in phosphates and very easy to digest, thus preventing wa- ter pollution by undigested breakdown prod- ucts. 9.1 Feeding sera marin coraliquid, a plankton based liquid food rich in energy, was specially developed for filtrating inver- tebrates. sera marin GVG-mix is a flake food with added treats for marine fish. This versatile basic food contains iodine and other minerals from ma- rine algae, krill, plankton and other valuable ingredients such as bloodworms, daph- nia and Artemia shrimps.