New to salt water

[Chase31]

okay so as far as i know this is the correct form to post in, if not someone correct me please.

to the point,
I just purchased a 31G tank with a fluval 205 filter, heater and such
Im not 100% new to the fish hobby i have a 10G freshwater tank so i generally know the just of that one, so anyways i have the salt in and have used a refractometer to test my salinity (its 1.022 1.023). So my second step will be to get live rock, planning on getting about 10 lbs of it, so i was wondering is that the proper amount of live rock, is the lbs per gallon really a needed amount? and is this the proper next step? im planning to cook it also.
Thanks
Chase