ADDING BRS Dry Rock

[nyc reefer]

I'm looking to add 10lbs of tonga branch rock to my tank in order to provide a little diversity in the rock/looks of my setup. I am curious if adding this amount of dry rock can cause a cycle in my tank if added directly to the display tank?

I have a 72ga bowfront w/ approx. 80lbs of LR & 15lbs of rubble in sump, setup has been running since Feb. 2008. Please advise whether to cycle in a seperate 10ga tank or add directly to DT?
Thanks

 

[ming]

Without a doubt, you need to cycle it.
I bought over 100 pounds of it and it turned the water brownish in the container I was cycling it in. Not to mention it has the acidic urine-like/low tide smell to it.

 

[Alex]

cycle it separately that way you can be sure to get rid of any unwanted debris, phosphates and other unwanted byproducts.

 

[nyc reefer]

BRS dead rock

Thanks Ming & Alex, what should I cycle it with by itself or add some of my tanks water from my next water change?

 

[CONSTANTNE]

I would use a 5g bucket or some kind of tub and use your old water change water. Thats what I did. Lets see what everyone else has done.

 

[nyc reefer]

Dead Rock

Thanks Costan., my friend just pmed me to place one small LR from my tank into the tank Im gonna use to cycle the dead rock and change.
the water with the one from my weekly water changes. Sounds like a plan, I'm gonna order it now.