Koi have slightly different nutritional needs to other pond fish and they also require extra colour enhancers in order to look their bestr tetra pond koi sticks meet these requirements via their extensively researched and proven formulationr they will provide koi and other pond fish with a complete highly digestible diet leading to maximum health condition and colourr contains vitaminsr tetra pond koi sticks analysis r protein 310 oil 50 fibre 20 ash 70 moisture 70 vitamin a 28