20 long SPS frag tank flow

[italeri]

So I'm starting a 20 long sps frag tank, and as of now have a few sps frags in it. I have a 2 bulb Aquatic Life t5HO fixture 6 inches above the tank. I figured since the 20 long is so shallow, i could get away with it for the frags. I also have 1 maxi jet 1600 as a temporary powerhead to accompany the roughly 400ish gph for return, but I am still seeing dead flow areas in my tank. I am planning on scrapping the maxi jet and either going with 2 koralias or possibly 1 mp10. Ideas? Im trying to get the best flow as possible for the sps frags. Also any other advice, comments, criticism, etc. is welcome! Thanks guys

 

[Epicreefer]

Either the koralias or the mp10 will do you good. The light you have is adequate for a 20 long, could be better but not worth buying a new one yet. For flow I like to go as much wide pattern flow as possible without visual stresses such as torn tissue or polyp retraction. The mp 40 is good for that especially the wide variable pattern. Koralias tunze and even the cheap jbj power heads will all provide a wide even flow as well and some surge depending on what you pick.