 Re: refugium/sump
you don't have to shut down the canister filter if you dont want to...
Or you can run it to help out your system when you need it. Carbon, water clarity, chemicals, etc. But if you want to get rid of it I would wait until you have some good biological filtration going in y our new sump, say about 6 weeks. It may be sooner but you probably can't hurt it by waiting.
I have a sump and a backpack. It is nice to get some mechanical filtration and use some carbon easily if you want to.
Jim
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90 Gallon glass, 135#'s of rock and 2" sand. 2-250w 20k XM metal halides. 2-95 watt actinic VHO, 4 powerheads, Coralife skimmer. Maroon Gold Striped Clown, Blue Chromis, Kole Tang, Pygmy Angel, Serpent Star, Brittle Star,Gorgonians, Mushrooms, Yellow Polyps, Turbo Snails & Blue Legged Hermits. 20 gal sump with Caulerpa, Mag 7 return pump. | 
