Spray washing live rocks?

[shafiq_hossain]

Do I run the risk of killing off all the good bacteria (which keeps my ammonia levels in check) if I take out live rocks from an existing tank, spray wash them and put them back in the tank?

Thanks.....

Edit: Do I run the risk of killing off all the good bacteria (which keeps my ammonia AND NITRATE levels in check) if I take out live rocks from an existing tank, spray wash them and put them back in the tank?

 

[jamescook]

yes

 

[dakota9]

Take them out and scrub them with a brush in tank water, then replace.

What are you trying to remove/