Yeah. I drew a diagram and I went right to Home Depot, into the plumbing section where all the PVC fittings are and peiced the whole thing together right there. They dont sell "bulkheads" but they sell the parts and peices to make one. All you need is a threaded male connector and a threaded female connector, the male goes up through the bottom of the glass, the female screws on inside of the tank., be sure to use O rings between both connections against the glass to stop leaks. Stay away from the employees, they likely will have no idea what your talking about, unless you find a fellow aquarist or indoor grower that happens to work there. Ill snap a pic of my DYI bulkheads when I get home to give you an idea.