Has anybody got a diagram for a basic DIY HOB skimmer? Preferably something that can be built with minimal tools, as I don't have a tablesaw, bandsaw, and all that good stuff. I'm toying with the idea of building a very small skimmer to go on a nano and would like to start by building a larger skimmer to get an idea of what's involved. Even a basic diagram of how HOB skimmers are usually set up would help...all I have experience with is in-sump.

Thanks!

Chris