The waterfall system is now fully functional. I had a bit of touching up to do whereas where the water should have gone through the false bottom so it wouldn't get lost in the terrarium. Now the water circulates perfectly and is being recycled over and over again. The Exo-Terra Repti Clear F150 is what's being used to circulate the water. Much stronger to my surprise than the Repti Flo Circulation Pump 350.