People seem to be missing the point. The black spiral tubing you buy at
aquarium suppliers is smooth on the inside, so water flow is not restricted.
The tubing itself is thick and can stand strong suction and burial without
collapsing.

Scott M.
Ottawa, Ontario


"Rob" wrote in message
om...
I can't quite figure out the tubing thing: many sites recommend the
black spiral tubing, but in my mind, the ridges will inhibit water
flow compared to smooth tubing. I need 1.25" tubing. Is the
spiraling stuff really the best way to go? It seems expensive...

Thanks in advance.