If you go to a hardware store you can buy copper pipe, as well as elbows, tees and other fittings. Using pipe elbows is much easier than screwing together pipes or conduit. It's probably more expensive than conduit, but the copper looks really nice when used in combination with a wood stand and black light fixtures. I've used it before to make a plant stand with a hanging light fixture. You can also get copper pipe brackets that are shaped like a "U" with flanges. The flanges have a hole for a screw so that you can secure the pipe to any flat surface. All you need is a drill/screwdriver, hacksaw, and a way to hold the pipe when you cut it.
I also prefer decorative chain for hanging the fixture. You can easily adjust the height and then remove the excess links. It also lets you temporarily lift up the fixture if you need more room to work on the tank.
Last edited by smannell; 06-25-2011 at 02:37 AM.
Reason: Added chain suggestion