This is an odd thing I've noticed. Whenever we get a rainstorm, I noticed my fish, mostly the goldfish, rush the waterfall, almost coming out of the water. Could insects or other edible things be washing down or maybe more oxygenated water, thoughts? I tried to post video, but no matter what size I make it, it says it's too large, so here are some screen shots. Some of these guys/gals literally come out if the water.