It should take about 2 weeks for the biowheel/sponge to become seeded from and established tank. You can keep the bio-filter alive by adding a pinch of food, when there are no critters in the QT (this will provide a source of ammonia for the beneficial bacteria to feed off of).
I like to drip acclimate, but I don't like to get any (or at least a minimal) amount of water from my LFS
in my tank. I use a bucket, add the LFS
water and critter and drip from my tank...makes things a lot easier, so I can mess around moving, cleaning or whatever, while my critters acclimate. You can get away with using the way MommaFishels describes, since it is going straight into QT. If you don't have a QT I would say use a bucket and try not to get the LFS
water in your main.
It is good to have some PVC
in the QT, simply for a hiding place.