I just recently added Eco-Complete Planted Aquarium Substrate to my established aquarium. I've always tried growing plants in plain aquarium gravel and am tired of seeing them slowly rot away, so I thought I'd try a substrate for plants. Upon adding it I notice it's quite sandy. How do you keep it from getting sucked up and away when you clean your gravel with regular water changes? And how do you clean the gravel as you get more and more plants?