Cichlid Colour Enhancing pellets are manufactured to an Aqua-cultural standard, that means it is vitamin ramped and trypsin inhibited. Vitamin ramping is something that has to be done to steam heated extruded foods, during the process of extrusion, vitamin content can be lost because of heat. To avoid this, extra vitamins are added to maintain the correct levels. Trypsin inhibition happens as a result of using Soy as a environmentally safe protein booster, incorrectly heat treated Soy will inhibit growth rate, Soy protein is used in nearly all fish food manufacture. All aspects of manufacture of this product are tested by spectrographic analysis after extrusion to insure it is kept up to an aqua-cultural standard, which means producing fish to a premium standard in the best of health. Cichlid Colour Enhancing pellets are coated with Glucose and Canthaxanthin, Glucose assists with the healthy condition of tank stabilizing bacteria i.e. (Complex carbon replacement to control nitrates),and Canthaxanthin naturally colour, enhances the same as Carotene does in the wild (both Canthaxanthin and Carotine convert to Asthaxanthin in the fishes body). This pellet also has an anti-bacterial which doubles to convert spiking Ammonia into harmless Methenamine, a first in ornamental fish food manufacture.All pellets for Goldfish, Tropical or Cichlids are available in 5 sizes depending on size of your fish. Crumble, 1.5mm, 2mm 3mm, and 6mm.