Stockman is what I always used, but did some test when setting up my new 180g with a single 1.5" overflow. Stockman is smaller, but not even close to same water flow through it. The Durso kicks ass.
Zer, what size pipe are we talking about? That would make a difference. If it's 1.5", I can check when I get home this weekend.
Lee
__________________
Need more time for the tank... Break a leg!
|