will old dry rock cause a spike?

[chevegan]

I've had some rock dried and dead sitting in a bin now for over a year. I rinsed one off that I want to drill frag plug holes in but I"m worried. Since everything is long dead and dry, after I rinse is there any need to worry about an ammonia spike?

 

[coast2coast7390]

ive heard of it spiking because of the dead organisms that are in the nooks and crannies...to be safe throw it in a rubbermaid trash can with a heater and a powerhead and some old tank water...that way you dont have to worry about it being dead

 

[chevegan]

kk will do

 

[savethereef]

it depends on how big your system is. I have about 40 pounds of dry rock also that i will be puting in my sump to start a fuge. But i will put them in a bucket of saltwater for at least 1-2 weeks before i start adding it to the sump to be sure. as for me i am working with about 215-225g of total water so i though it will spike

 

[roxy25]

I never had any spike when adding dead rock to my current systems all i do in rinse in old sw or new sw and add to tank, right now I am seeding dead rock in my 8 gallon