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View Full Version : Adding dried rock. Will it cause a cycle?


matthewscars
01/01/2009, 12:37 PM
i have an established 90 gallon and i bought some macro rock. Can i just put 15-20 pounds of rock in the tank without a cycle?

the rock is completely dead and dried. its pretty much all calcified.

will this cause a small amonia spike?

reefnetworth
01/01/2009, 12:45 PM
15-20#'s in a 90G? yes, you will have a small cycle, anytime you put/place uncured into a cured tank you will experience a cycle of some kind. usually small!!!

mbell09
01/01/2009, 12:47 PM
do your changes you should be good IMO

Hop
01/01/2009, 12:51 PM
Could go either way... I add base rock all the time and have never experienced any detectable trace of a cycle, but I have seen it happen in other tanks.

E.intheC
01/01/2009, 01:12 PM
I highly doubt that adding dry base rock that you're sure has no life inside will add a cycle..

gas4544
01/01/2009, 01:41 PM
To be safe, you could try curing the LR in a seperate container and perform some water changes to see if you have an ammonia spike. If it does, then continue to cure the rock.

E.intheC
01/01/2009, 01:43 PM
<a href=showthread.php?s=&postid=14056962#post14056962 target=_blank>Originally posted</a> by gas4544
To be safe, you could try curing the LR in a seperate container and perform some water changes to see if you have an ammonia spike. If it does, then continue to cure the rock.

I feel like if it's dry, 'dead' rock with nothing on it, why bother curing it? I mean, there's nothing wrong with being overly cautious I guess, but why go through that trouble?