I bought what they were calling "fully cured base rock"

my 55gallon currently has id say 50 to 70lbs of live rock in it. Im a bad guesstimate on weight, so once I get the 25lbs in, I can give a better guess as to how much LR I currently have. But id say my first guess is close.

my plan was to put it down first, then my LR around and on top of the base rock