I recently added a chocolate mimic to my 125. He's doing really well eating and picking and mowing down algae. What's really funny is that he goes to one corner of the tank to relieve himself. He's eating and picking on one side of the tank then he will dart all the way across the tank, face the rear corner, and poop. I thought it was coincidence but this makes several times over two days I've seen him do this. Anyone else ever heard of such?