Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Can you show it in action?
I used a window box with the holes sealed. 3/8" Lava rock.
I had a small fountain pump in the bottom of the aquarium and two tubes leaving the window box. Small amount of sponge at the entrance to the window box to trap coarse debris, but it never needed cleaning.
This did not actually make a water fall or stream though. It did grow house plants really well!