Excel Color is an excellent Koi food that improves significantly the magnificent colours. Excel Color has been manufactured using nothing but the best natural ingredients, without addition of any artificial dye-stuffs or flavours. Beside a high quantity of natural Spirulina it also contains the natural Astaxanthine (Hematococcus Pluvialis algae) in a perfect balanced composition. Especially the red colours will be intensified after just a few weeks. Excel Color has no negative influence on the white pigments. Excel Color can be mixed with Quick Grow in a 50/50 proportion and will give excellent results.