Originally Posted by Madmilkman
Yeah. I have a 90 gallon I will eventually set up but I want to grow as much live rock as I can in the 20 in hopes of moving it to the 90. Probably going to take me a while but I am too cheap to pay 1200 dollars for 90 lbs of live rock lol
You don't have to make it live in the 20 .
When you start up the 90 use all dry base rock , cycle the tank and as the beneficial bacteria grows it will cover every surface of the rocks making them live .