For best results use Saki-Hikari® Deep Red™ when your water temperature is consistently above 20ºC(68ºF). As this diet offers an extreme color enhancing effect and is meant to be used as a supplemental feed.
As a reference, based on feeding trials at the ®Hikari Aquatic Lab's, a mix of this diet and Saki-Hikari® Balance in a ratio of one part Deep Red™ to two parts Balance would provide a similar color enhancing effect as Saki-Hikari® Color Enhancing. Therefore, higher levels of Saki-Hikari® Deep Red™ will provide more aggressive color enhancement. Please note: Exclusive feeding of Saki-Hikari® Deep Red™ may cause discoloration on the Shiroji(white areas of the koi).