My koi in the past month have gotten in the habit of coming up and socializing during feeding time. They would initially come up upon me tapping a rock, and continue to feed. Well, now they don't even acknowledge feeding time that i notice. The past 3-4 days, i would knock, and nothing, then throw in some pellets, and nothing. I noticed if i stepped away, a few of them, like 2-3 of the original 14 will come and eat a pellet or 2 then shoot back down almost instantly. I have recently added alot of plants, and we did cut the surrounding grass this week, could it just be the mowing scared them enough for them to hide for 4 days? I'm worried some of them may not be in there, and i don't really know how to check right now with my water being so green. I do plan to do a 50% water change and clean out my large plant shelf this week, along with adding my new skippy filter. But just wanted to know if anyone might know whats going on.