Just about 2 minutes ago I turned on the light on my fish tank and one of my clown loaches just went absolutely crazy. I turned it on and then it just swam extremely fast. It scared me because it just seemed like it was panicing for some reason. It swam so fast all around the tank, back and forth, through all the rocks and around the tank again and then all of a sudden just hit the ground and then it just layed on its side and breathed heavily. I'm not going to look at it for the rest of the night, I'm just going to wait for tomorrow morning. Anybody know what could have caused this?