Depends on stocking. The snapper is rated at 2400gph before headloss. You'll probably lose anywhere from 500-1000 gph depending on how you plumb your returns and what size piping. Personally for a tank that size, I'd do a dart or super dart. Check out the reeflo site for charts and figure your headloss first, then size your pump. Each 90 counts for about 1' in addition to the length of your returns....
Reeflos are pretty quiet in general