This was a quickie setup, using a flower box, two small plastic bins which house LED lights from a used hood for the 20g below, and a LED clip-on light I made from various junk, to light the ivy.
The water feeds from an air hose bleeding off the pressure pipe of the 30 tall to the left, and returns thru the 3/4" PVC pipe to the 30.
But it sits on a 20 which houses little Sunshine.
Sunshine's lamp is too dim though. I need more LEDs on the circuit.