Originally Posted by
srfisher17
http:///forum/post/3209261
Too many variables for a direct answer, so much depends on other equipment corals, etc. But you want the entire tank to get water flow and the surface to get agitated (to help gas exchange).
I dont have any corals, i plan to make it a FOWLR tank. Right now there is only a bunch of snails, a few hermits, a brittle and a cleaner shrimp. Its only a 29 gallon tank so it shouldn't be too hard to find the right position to keep good water flow. I wasn't aware of keeping the surface agitated, so thank you for that! I will have to move it up a little bit. I only have a basic "over the back" type of filter though, so it does agitate the surface that way.