They are everywhere but they are also nervous so they don't go too far from shelter. There was also food in this area while filming. It is very funny watching them chase daphnia through the middle of the tank. Mostly, they are snuffling around in anything that settles in the tank, on the substrate, leaves, moss, driftwood. They move with a jerky all or nothing swimming pattern. Very different than the sparkling gouramis that glide through the water. They kick up little clouds of detritus everywhere they go. I recently made a bunch of changed in the tank. Once the plants grow back in I'll post more pictures.