I've been using two powerheads and my return in my 30 gal. tank for water movement. I'm thinking of getting a SCWD? Does anyone have any experience with these, they just don't look like they would last very long. http://www.drsfostersmith.com/produ...&Ntx=mode+matchallpartial&Np=1&pc=1&N=0&Nty=1



