This brand new Hi Grow fish food from Velda contains Krill Meal for optimum protein & Astaxantline & Spirulia to enhance the colours of your fish. It is best used at intermittent intervals during Spring/ Summer in conjunction with. (e.g feed for 3-4 weeks using Hi Grow alternating for 3-4 weeks with Staple Prime). Use at water temperatures above 15°c. Available in 6mm. 1400g 1600g or 4700g. Conveniant resealable bags. Aids digestion & strengthens immune system.