Heyo, so I have a quick question. I have 6 Julii Corydoras in my heavily planted aquarium. They started glass surfing about 2 days ago but I figured it was because I did a water change, but they continued the behavior for several days. This morning I fed super heavy ( this isn't something I do every day, I test water regularly don't worry.) so everyone in the tank had a huge meal this morning. I noticed that my corydoras stopped glass surfing after that and they still haven't glass surfed again today. When I feed I always sprinkle food on the top of the surface first to lure voracious eaters away so I can sneak the sinking wafers/pellets in for the bottom feeders. I always make sure to watch the corydoras eat before I walk away because I worry about them not getting enough food. So this leads me to think that they were glass surfing because they were hungry because they stopped when I fed heavy? But I watch them eat every time I feed a normal amount? I tried searching the web to see if corydoras glass surf when they're hungry but I couldn't find anything on it. So I'm super conflicted on why they were glass surfing, water parameters are fine and there's no predators/big fish in the tank. Anyone have any ideas?