proper tank circulation

[buckets]

I have a 180 gal. setup and I am going to buy a new pump (my present one is way too loud). Can anybody tell me what the proper circulation should be for my tank, (i.e., should it circulate 2 times per hour or more ? Please advise.
Thanks

 

[underthesea]

in my opinion the more circulation the better. In my 150 reef my return pump is 1600 gallons an hour with the hight loss. Plus I have 5 power heads hooked up to a wave maker each are 450 gallons an hour. And everything is awesome and has been for years. There are all different opinions out there but I would say ten times your water volume an hour minnimum

 

[bluemarlin]

I turn my 180 tank about 6.5 times per hour. I agree that more is better. And I'm keeping my bioballs(long story there but I just had to say it)

 

[frankl15207]

Try this link and select your tank size:
<a href="http://www.garf.org/bulletproofreef/bulletproof.asp" target="_blank">http://www.garf.org/bulletproofreef/bulletproof.asp</a>