i have a 120gal tank that i am planning on making a sps tank i have four holes drilled for closed loop, however my circ. pump is coralife 1090 cir. pump which does a little over 1000gph at 0 head and i also blueline 55 it does 1080 at 4 head which is a better pump choice ? and is that enough flow for this aquarium(48*24*24) ?