cartridge filters and pool filters are not made for environments with lots of debris in the water. they are made for swimming pools with little debris in the water. they will clog too quickly in a reef tank and be a maintenance nightmare.
most public aquariums, like Atlantis Marine World, use a bead filter such as you would find on a koi pond to filter out particulates. these still need frequent backwashing.
in most of the videos i have seen of wild reefs there is a lot of particulates in the water. i think that is a good thing and will feed your fish and corals.
less technology-more biology.
contrary to popular belief skimmers have been shown not to add to the oxygenation of the water nearly as much as a powerhead pointed at the surface.
http://reefvideos.com/ see the lecture by Eric Borneman.
a must read in my opinion is "The Reef Aquarium" VolIII by Sprung and Delbeek for anyone setting up an aquarium. fantastic reference book
there is also a great chapter in "Reef Invertebrates" by Anthony Calfo about live rock and curing it.
low salinity and temps will kill of invertebrates such as small crustaceans, sponges and other critters that haven't already died in transit. also high ammonia levels will kill them too. if you want them to survive keep the levels of them low during the curing phase. don't just wait for the ammonia to reduce to zero. you will have bacteria left to process ammonia but not much else as it has been poisoned by the ammonia and nitrite.
i would do lots of water changes and keep temps up near 80-82 like the water the rock came from.
2200 pounds seems like a lot of rock for your tank. keep making that salt water. this is a very critical part of the tank building phase. take your time. i don't think 2-3 weeks is long enough to really deal with all the die off on the LR.
http://forum.marinedepot.com/Topic23945-9-1.aspx
Carl