Hi, I’m posting on here again because I didn’t get an answer last time. I got two 3 inch koi about a month ago. For the first 2-3 weeks they we’re hiding a lot and I barely saw them. They we’re also always at the bottom because it was a bit cold. Then, about 10 days ago, one of the fish started being super active and swimming to the surface when it was super hot out. When I was next to the pond he would even approach me. He continued to do so for a few days. The other one however just stayed at the bottom and was not very active. Then, a few days ago, the active fish started acting like the inactive one. Hides, stays in one spot, doesn’t move much. I’ve seen both these fish swim quickly when they’re scared. Question is, what is causing all of this? I get them hiding when I come next to the pond, but even when they don’t see me they’re hiding. I have a pump filtration system, there’s a fountain that runs consistently, and the pond is about 400 gallons which is obviously enough for two 3 inch kois. Someone help please!!