During the colder periods of the year the nutritional requirements of fish change slightlyr in order to meet these needs tetra have developed wheatgerm sticksr these sticks contain all of the nutrients required by fish during the winter months in a format that is easy to digest and that will not sit in the gut like non specialised feedsr by feeding fish during the winter their energy reserves will not be depleted and they will start the new season in much better conditionr continue fee