refugium question

[reeffanatic]

just wondering if anyone knows if the whole volume if my aquarium needs to run through a refugium for it to be effective ??
am considering using a 10 gallon tank to make a refugium and plumbing it to flow into my existing wetdry sump..
if i do it this way,,i cannot be confident the whole tank volume will pass through

 

[toddius]

Are you going to use an overflow? Or should I say how will it be fed. Either way you do it there should be no problem as eventually all of your tank water will pass through it. You do not need a fast turnover for a refugium anyway. Refugiums rule.