Not much to show.


This is the back side of a series of 20 gallon tanks. They all have drilled backs and 1" PVC pipe is connected to drain water back to the sump. I have small pond pumps that lift the water from the sump up to the tanks. When the water level gets to the overflow, it dumps back to the sump.

Water goes into the bead filter, and over the biological filter before it goes to the sump.