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I'll be there. +1
Here is a good article on it. http://reefkeeping.com/issues/2004-12/rhf/index.php
Couple things to think about. I would put a valve in the return line after your pump. If your pump is pushing more water than the overflow can...
Setting them up once class is started is a great way to teach about the nitrogen cycle of the systems.
Bump. It looks like the consensus is to move this back later in the summer. How does Sept look for anyone interested?
there's some nice deals there.
Kill them now.
very cool.