Evolution aquarsquos wheatgerm pellets r have been specially designed as an all year round food with added benefits for koi when temperatures are low incorporated into the formulation of our wheatgerm pellets is bio mosreg which is derived from a specific strain of yeast r bio mosreg helps to improve nutrition and overall health evolution aquarsquos wheatgerm pellets also contain omega 6 and 3 there are no added artificial colourings used in evolution aquarsquos wheatgerm pellets