Hey, so im getting a new tank this weekend. The person selling it to me has eco complete in it currently. I was hoping to try a dirted tank though. Has anyone ever done a dirted tank topped with eco? After watching this video im not so sure its a good idea. fast forward to the 3:30 mark.... http://www.youtube.com/watch?v=slx0bwEjRF4&feature=related I was wondering if anyone has any experience or knowledge on this to either steer me towards or away from giving it a try.