thanks to both Proteus and Tom500! this tank's decoration is based on a group of photos I found when I was looking for some sort of info about this fish's habitat. I found out that both dry or death wood and some leafs at the bottom represent a mayor part of the habitat's "decoration". I've seen leaf fishes on planted tanks, but I don't like how they look being on these type of tanks, so thats why I build up this biotope-type tank so M. polyacanthus can feel they are at the amazon, or at least on a safety and "used to" enviroment.