New to skimmers

All right so i have read abut skimmers and i cant keep going without one - so i got one! This one was the only one big (bigger one anyways) that they had at my new petco, so i got it.  It came with an air pump, air line tubing, air valve, check valve, air stone, colloection cup with lid, and the body aka chamber. i put it all togather, and thats all the directions say to do. The brand is just bio cube... somwthing something... and it hangs on the wall on the inside of the tank, with like a protector around it, but its about under a foot tall or long. So i put it all togather, but  it didnt come with any other directions, and i estimated to set my air valve to make it so the foam is just over the chamber almost in the collection cup. So my questions -

That does help! Thank you lots, thats the exact same one too. Now my other question, how long does it take to get the skim mate to fill up?? Some people said half an hour but some said a couple weeks.....

Is there any way i can get it to foam more?

So today i took off the clear tube that is half way up in the camber so now thats in the chamber is the air stone. I did this so i could turn up the air valve all the way to include as much bubbles as possible, but on full blast with out the tube, there is defeinitaly alot more bubbles, but  now they dont reach all the way to the top............ So i used my own air pump i got from walmart a while back the it is A LOT stronger. I acutaly had to turn down the air just a bit cause there was to much. Now there is alot more air being forced alot faster all around and its sucking water in faster and stronger than it was............ Yes this is odd, but i smelled the top of the tank water (not touching it!) and it didnt smell like much, but then i smelled in the skimmer and it smelled really strong, so i hope that means there is stuff collecting... 

Yea, definitaly. It pisses me off sooooooo bad because our petco sales a bunch of salt water fishes and huge tanks, but only tiny skimmers.. i only got it because it was the only one that was kinda big.... all the other ones were a tiny simple set up..... i have alot of water movement around it though:) and sadly its on a 55 gal. on the box it says 10 through 40 gallons though. They had a bunch of different sized skimmers by oceanic for biocubes there. most of which were under 30 gallons. I will absolutly get a bigger one though soon, no matter what.

K, yes i will definitaly look into those!