I know there is a lot of site saying that to have a saltwater tank you need many expensive equipment, a big tank and more....

But if you really want to have a saltwater tank, you don't need much.

Check my site I have a guide on how to set up a saltwater tank.

http://www.fishworldsite.com

Do not post this on reef central. They will eat you alive. Floating your bags to acclimate....using conditoner....and using crushed coral are all disasters waiting to happen. It is however a great look at starting a tank. Anyone that has used tap water.....and is now using RO.....will gladly tell you there is a HUGE difference. And your skimmer will tell you that difference. As well as massive algae blooms with conditoned tap. But cool site.