ha! Just teasing you a little Scott-- ( But getting rid of that stupid picture was a helpful suggestion!
)
No harm, vitamin C is probably the rational. I use orange juice myself when mixing Izeki paste foods.
As far as koi liking fruit-- they like anything they can taste! Koi can taste sweet, sour and bitter. They also can become easily conditioned to food types.
The unique thing about koi, a sign of intelligence I think, is the fact that if koi have a favorite pellet type/brand, and you mix several other pellets with it, all the koi will eat slower as they attempt to find ( taste and smell) the pellet type they like the most.
This trick can be used to help less aggressive individuals get some food from the vacuum cleaner type feeders.
Best, JR
PS get rid of that stupid picture, halloween is over and you're 37 years old for heaven's sake! LOL