Advice for tank transfer?

[lastlight]

So Lance you're suggesting tossing out 30 gallons or so of my new water? System is 100% full and circulating right now.

What I could do is do waterchanges for a few weeks using water from the new tank lol. Dump the old water into the new tank.

And yeah think I'll grab all my new rock and let it cycle. I never had a cycle last time and maybe I'll get lucky again.