Is this a bad idea?

[Aquattro]

Christy, I'm not moving all of the 90 contents in, and in fact wasn't moving much other than 2 rocks with lots of corals growing on it. But, I can add a fair bit to the new sump, just not all. The rock I'm using should be able to catch up quickly, it's been cooking with food source for over a month.

Mindy, yes, O2 content will be something to watch with the skimmer offline...