SUPER Green 50g. A very special food added with high concentration of PSB and spirulina, formulated to enhance color on all kinds of fish such as blue, green, black, platinum, yellow and etc. PSB and spirulina will give all kinds of fish, their natural color. This special food will enhance full fish color within short time. Fish color improvement will be noticed within 7 days. It is suitable for goldfish, koi and cichlids.