This is kinda hypothetical I guess.
We are moving & I so far can't find an aquarium store within a 2 hr drive & I won't know anyone to get some LR
or sand from their established tank. I am going to order plain baserock in stead of LR
& used a normal substrate. My question is that if I buy a small bag of live sand & add that will those organisms migrate & develop on my base rock. Or am I going to have to try to get my hands on 1 or 2 pieces of live rock in order to get growth on my base rock?
Is there a web site that sells liverock in small quantities, 15 lbs & less of live rock. Would that small amout be enough to start growth on my other rock if I can get some?