Board Thread:Fan-made Monsters/@comment-27950421-20160712201128/@comment-28358106-20160717050437

And you're right about the substrate, although I use straight pea gravel on the landmass and volcanic sand in the water. The gravels too big for Dundee and the sand helps maintain pH. So far I've had pretty good luck with the plants adapting to the gravel hydroponically, but it makes finding the poo harder because of the roots.