Hello everyone I'm starting my 72 gallon this weekend and I already have a 30 gallon running that I will be taking down and was wondering if I could add the 30 ibs of live rock to the 72 gallon a few hours after I setup
You can....but if the live rock is well establish, you might want to let things stabilize first for atleast 48 hours before adding the live rock. Just one man's opinion.