I have a 90g tank. Recently I made a filter/sump/refugium from a 20g long. However there is just not enough room for reactors, sterilizer and skimmer etc. I am considering re-plumbing the 20 into the old eshopps filter. Does anyone see any logistcal problems with flowing water from one sump to another then back to the tank? Basically I am going to use the 20g as mechanical filtration, then with 1" pvc route the water to the eshopps sump, and use that as a refugium. From there pump water back to the tank. All ideas / suggestions welcome. Thanks, Phil

