[Akai-San]

Dick,

Sorry, I did not realize that the koi needed amounts of natural sunlight or any light to help maintain color. My post was intended to address getting the best color rendition for indoor viewing. Would the lighting for the indoor pond be more for pond water sustainability or does the koi actually need to be drenched in the light? I only ask, because usually low-voltage halo fixtures are not used for general lighting. More for task or spot lighting. This could be good for dispersing the lighting in areas of the pond that you want more light than others. The downside with this type of lighting is you will get hot spots (brightness) below each fixture, just like recessed can lighting. Just more tid bits. Good luck.