Tony: Keep the 72 bow (duh, right), but take the opportunity to replace/upgrade that scratched 75 finally. I think with the moving of the species tank, you'll be plenty stressed enough. Decide what you really want to keep from the 75, and go from there. You can even get people to coral-sit for a while if needed. (I think Jon might have some room left.
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Like Deb says, it can be a full or partial rebuilding - either way, a great chance to get the setup you want.
New home, new tank - isn't that that the rule??
