Posted: Mon Jan 19, 2009 9:48 pm
I read once that the Fluval ribbed tubing doesn't build up as much algae as the vinyl tubing, since no light can get it. When I took down my 404 after about 2 years, the inside wasn't terribly gunky. I can't remember if I even ran a rag though it, but I did run my finger along the inside, and it wasn't terribly slimy.
Ralpheal, "The 'L' is silent."
Frankie, "Young at heart."