I have decided to start my first ever saltwater tank. I currently have a 10 gallon tank, with the normal measurements of 20x10x12. I have a bio-wheel filter that cleans 100 gallons of water every hour, so it's cleaning my tank 10 times in an hour. I also have a heater. Also got the hood with the LED lights in it. Basically a 10 gallon starter kit. So I was wondering what more do I need for saltwater? Will my filter and heater work with saltwater? Also, i have heard something about live rock and live sand? Could someone tell me some information about it and how much I need of each? This is my first saltwater tank ever, so I need all the help I can get please. (I also know that I have a relatively small aquarium, but money is a restriction for me) Thanks in advance for all the help!