Unlike all other black feeds on the market, it remains black even underwater. All previously produced feeds lost their black color within half an hour underwater, which was washed out. Super Black does not change its color in water. It is colored using a new procedure and not just by adding black dye. The proof is that after using it, the black dye does not settle on your hands. It is based on the very successful 3000 series. This feed is usable all year round. It is particularly suitable for clean water or for heavy waters.