LOL its like a lava rock type thingy, I will go through my pics and see if I have a good one of it
edited to add
Found a pic, now nobody mock my false plants, I like them :happy2:
editted to add advice
Now the moulding holes are right underneath, mine was like that, and my big boy dig a hole under the gravel, only found it out when I had a gazillion babies around LOL. So perhaps you can leave it at a slight angle so he can discover the hole himself. My boy is about 12cm and fits so your guys will fit too :lol:
edited to add once again
its something like this, mine just does not have trees growing on it
http://www.hollywoodfishfarm.co.nz/deta ... es/m/1122/