Very new to the hobby, need some help please.

[ironwalrus69]

Hello, i Just got a 46gal. tank about 10 days ago. It has both live rock and live sand in it. I have read a couple of books about aquiriams but none of them have told me how to check the different things in the water( like the nitrates and salinity ect.) I was hoping someone could take the time to tell me what i need and how to do it. I also need to know how to change the water in it. Thanks

Just today i noticed very very smalll bugs swimming around the tank. I tried to find out what they are but i couldnt. They are white and about tyhe size of the tip of a needle but i assume they just hatched from whereever. If you have any idea what they might be (bad/good) then please share... Thanks again