i thought it had a higher flow. it would have been dribbling out at that rate..

Well with SPS you will need more then 2 K4's. IMO you are better off spending the $$ on a vortech rather then controlable Koralia's, IMO there price tag is a lil high. For the price of 2 K3 and the controller you can have a nice vortech. You may also want to consider a sea swirl for the return or wavy sea if you want to spend the extra $$.

Those Vortech's are REALLY nice!

Um yeah..... I am already sooooo over budget. And I still need to buy rocks and sand. My poor corals are going to have to do without high tech changing flow.

You don't need the alternating current to have a nice SPS tank. You can get it done with good Ole Koralia's and maybe a modded Maxi jet or 2!!