Brew12
Electrical Gru
View BadgesExcellence Award
Reef Tank 365
Article Contributor
Moderator Emeritus
North Alabama Reef Club
Article Administrator
My Tank Thread
I didn't look what their recommendations are. I've used enough of them professionally, of many different brands, to know the requirements. You need that length to get nice laminar flow through the pipe or the vortex meters don't read correctly.