I have a 29G Biocube I was thinking about making a 10g Sump for it and keeping the back the way it is now and just running the plumbing through the cord opens in the back. Was thinking about using Flex tubing and just go from there upgrade my return pump to a higher GPH and adding a Different return Nozzle. Only thing I don't know is my question for you guys How would I get the water to flow into the sump from the tank.


