Tetra pond koi colour growth sticks size 4 litres 1200g healthy growth for large koi thanks to high levels of hydrolysed proteins intense and natural colouration thanks to high quality carotenoids increased energy and vitality due to high levels of unsaturated fatty acids supports a healthy immune system thanks to optimum nutrition ideal for building up important energy reserves before the autumn koi food formula unique recipe easy to digest minimal water pollution clear wate