Professional groundbait purposed for feeder fishing competitions. It was devoloped on the basis of experience of the best British and Dutch matchmen. GST groundbaits include various, the mostly liked and easy digestive ingredients for each spacies. Perfectly balanced ingredient proportions quarantee its step by step release ant the they start trawing fish at once. The grounbaits can be mixed one with another. One can also dyes, additives or activators. As result the unique mix, perfectly adjusted to the venue conditions arises.