The Vivarium bug has officially bitten me..... I have an Exo Terra glass terrarium that is 18x18x24. I have been drawing up design ideas to try to figure out how I want to do this viv. I thought about attempting a waterfall, but am not too sure about it yet. People I have talked to, say that the water ends up turning a red color from the eco earth and then getting foamy. Anyone know how to get around that? I tossed aroung the idea that instead of having the waterfall empty into the substrate, that I will create a water fall and a basin, out of either great foam and black silicone, or foam and grout. Any thoughts on that or suggestions?

I want to get some RETF for this enclosure, so I am trying to design it to their needs. Anyone have any suggestions?