ROFLOL....peas? was that on the recommended koi food list?...or are you feeding them table scraps to save money?
BTW... your silver ball looks like fun. What do the koi think of it? Do they react or ignore?
Yes, frozen peas! They were on that list with Cheerios and watermelon. But not all like them. They all are crazy about the Cheerios though, just as much as the Tetra...maybe more. The mirror ball doesn't bother them either, they feed right next to it if it floats by them. The mirror ball is really cool at night too, as it moves around the lights hit it like a disco ball!
BTW, I'm putting in a $550 ultraviolet filter my pond guy says will kill the algae. Hope it works.