Heh, u got the same crappy one that i did. There is a little airtube sticking out with a knob on the end. Twist the knob around, figure out which way it goes, and tighten it up to only allow a little bit of air injection. And also, its not crappy, i use one on my 120 gallon and i get decent waste removal. Thats with 2 lionfish, an eel and a tusk. It gets the job done for me, but just barely. Itll be fine for u though. So yea, adjust the air intake. Also, wen u first setup a skimmer, itll take some time b4 u can get the good foamy stuff to come out for ya. Its removing alot of waste right now, so itll be a little watery. Get the smallest amount of air in, and over time, open it up slowly each week.