HIKARI EXCEL HIKARI EXCEL Hikari® Excel™ is a scientifically developed, color enhancing diet. An easily digestible food produced from a mixture of highly nutritious wheat-germ and pure cultured spirulina. After a month of daily feeding it can produce ideal coloration of your koi. Hikari® Excel™, simply the best! EXCEL MEDIUM PELLETS 17.6-oz HIKARI: EXCEL MEDIUM PELLETS 17.6-oz $16.75 SKU: HIK13342 Click here to save 5% off of your order! EXCEL MEDIUM PELLETS 11-lbs HIKARI: EXCEL MEDIUM PELLETS 11-lbs $149.99 SKU: HIK13382 Click here to save 5% off of your order!