GPH?

[gregzz4]

As already stated, 6ish gph is a magic #, but that's based on info I've only read here in the past. Having enough flow to feed your skimmer is the point, without overdoing it

Unless I missed it, what I haven't seen mentioned yet is GPH in the DT, and this will depend on what coral critters you plan on keeping
May be a subject for a new post ...