I would recommend using it as a submersible, if you have a sump. Don't worry about putting the pump in the water, they are made for it. Just make sure you have a drip line.
I have the 100 model and it seems to work better as a submersible, plus if it ever overflows or leaks, no messy floor.
Make sure you loosen the valve on the end of the air tube, mine didn't come with instructions, took me a day or so to figure it out. You may have to play with it for a while, took me about 20 minutes to get it right. You will have to re-adjust once you are done cycling.
Just loosen until the foam starts climbing into the collection cup.
I also recommend cleaning out the air tube every 30 days. Shut down the unit, pull it out, and flush the tube. I get salt creep in my air tube which cuts off the air intake; my skimmer wasn't pulling anything out for about a week, then I noticed no bubbles in the chamber, salt plugged it. I flushed the tube and it works great. Of course you should clean the whole unit every month anyway.
SeaClones aren't the best skimmers, but mine has been doing all right so far.
Once your done cycling it will pull out a lot less sludge; if it's not pulling out a lot make sure you clean the inside of the collection cup. If to much crap builds up the foam has a hard time getting over the ledge.
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75 G Display, 12 G Refuge, 12 G sump, 1/10 Chiller, Coralife Skimmer, 300 Watts MH 14,000 K, 356 Watts of Actinic PC Lighting, 120 Pounds of Substrate, 109 lbs of Rock.
Corals: Pumping Xenia, colt, Hammer, 4 misc mushroom groups.
Fish: 2 Ocellaris Clowns, Yellow Tang.
Inverts: turbo snails, astrea snails, tiger striped serpent star, sifting star, skunk cleaner shrimp, sally, red ball sponge, 50 or so hermit crabs | 
