[quote author=Roc link=topic=3622.msg41904#msg41904 date=1209417284]
[quote author=tuberider link=topic=3622.msg41897#msg41897 date=1209416096]
Looks like a plan to me.
120s are a little tricky to get good flow out of them, depending on how close you want it to the wall you could do a closed loop, to me that would be the best option. Or you could create a circular gyre using powerheads to take advantage the tanks depth.
[/quote]
Jim told me I should do a closed loop, but I do not know what that is really
[/quote]It's basically a closed system designed for circulation, since it is closed it is not pushing against head pressure making it a cost effective way to move water. The simplest form would be two holes drilled, one for intake, one for return with a pump inline. Of course you would want to have more returns, and intakes for that matter, but that depends on what you want to keep in the tank. If it is a simple mixed reef you can keep it to a couple of returns, however if you're going for a full blown reef crest type tank you may opt for more of everything.[quote author=Roc link=topic=3622.msg41905#msg41905 date=1209417451]
[quote author=Elite link=topic=3622.msg41902#msg41902 date=1209416804]
couple K4s are good start. You can add more later in needed.
If you want to keep that design, you should add more baffle between the skimmer and return section. Some skimmer put out micro bubbles and one baffle most likely will not be enough to stop them from going into the return. Someone correct me if I'm wrong, I don't think there is a need to put baffles between the drain and skimmer.
[/quote]
I could effectively lose the baffle between the drain and skimmer and move the bubble trap to after the skimmer
[/quote]Yep, just flip it around and you're golden