The guy who sold his 75 gallon fishtank is very rich. Everything was costum made for him, and even filters and all the pumps. He spent $2000 for just equipment and this fishtank, and I got it from him for $300

that was a deal that I couldn't resist :P I f I would call him up he would have no clue what to do with it, because he had a guy from a company coming to his house every other week to check on everything and to set it up.
I figured out the part with my filter, which is Wet-Dry filter with bio-wheel. I have a skimmer, and I had no clue where to put it or what it is, so I took the picture wiht my digital camera, went to the "Big Al's Aquarium Store" and the guy who works there was very helpful explaining everything. So now I know all the equipment I have and what else I'm missing.
I'm just saving money so I could buy sand and rock since it is so expensive

And all of you know that already! But thank you for your help... if something I'll ask you more questions...which I think I will have a lot