LOL.. come on... say what you really want.
Amps real answer - 100x+ turnover.
It is total counting all powerheads.
Most people really only have on average 15-20x turnover. It is very hard (near impossible) to get the turnover required to mimic a real reef without blowing sand all over your tank. Plus most people try to limit the amount of powerheads in the tank for asthetic reasons and usually find out about closed loop systems after they have already setup the tank and can't drill them for closed loop.
For your tank, I would suggest something like 2 Koralia3 powerheads. If you have a lot of $ then tunze powerheads are the top of the line IMO but beyond my budget.
Personally, in my sump, I use both Purigen and Chemi-pure along with a phosphate reactor with rowas media.
My tank is running at around 60x turnover lol