adding live rock

[FishHick]

I have some live rock in a tank that has been setup for over a year. Would it cause any problems adding my rock all at once (30 lbs) to another tank that has been set up for at least 6 months?

Thanks

[Piscator]

If the tank that has been up for at least a year has been maintained with the same care as the one into which you are transfering the rock (same pH, salinity, temp, etc) then you should be fine.

That said, if it were me, I would move over a little at a time over the course of a few weeks...assuming this was a viable option.

Best wishes,