I am planning on getting live rock for my newly purchased 75 gallon tank and the prices at the lfs for live rock are extremely expensive, arround 10$/lbs for curred and 6$/lbs for un-curred. I know a general rule of thumb for live rock is around 1-2lbs per gallon. Does that mean per gallon of water or per gallon of the size of the tank, because i have only arround 55 gallons of water in my tank. Do i go by that number or by the 75 gallon rating of the tank. So ultimately how much LR would you guys recommend i get? And finally where would you recommend i get the LR if i get it off of the internet. Im near Kansas City. Middle of the country Any suggestions are appreciated.