Ironically enough I just posted about my rosea burrowing now its about my imperator. I have her set up on a false bottom setup with the aquarium gravel on the bottom of the tank and about 5 inches of peat. She has a rock hide that she dug under and went all the way to the bottom, proceded to remove the gravel from the bottom, and dug along the bottom for a while. So now that shes done the top of the substrate looks like a quarry because she brought all the gravel up and put them where she wanted lol. I just thought I'd share my emps weird behavior with you guys and see what you thought about it.