Kockney Koi Wheatgerm Stix. The perfect food for the cooler months through autumn and winter, low protein floating stick fish food for koi and all pond fish. Zone D - HS, IV41-49, IV50, IV55&56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE, Isle of Man & Channel Islands.