Does live rock have a life span?

[msjboy]

http://www.reefsanctuary.com/forums/...ck-anyway.html

quote: some aquarists claim that live rock should be replaced every 5 to 10 years. The lifeforms inside the rock will die off of their own accord, and the help the live rock gave at removing nitrates will diminish as the rock ages. Some claim that once coralline algae covers over the crevices and these worm holes, that the rock will loose its ability to handle nitrates, too.


Good read... anyways

[Leah]

Originally Posted by msjboy

http://www.reefsanctuary.com/forums/...ck-anyway.html

quote: some aquarists claim that live rock should be replaced every 5 to 10 years. The lifeforms inside the rock will die off of their own accord, and the help the live rock gave at removing nitrates will diminish as the rock ages. Some claim that once coralline algae covers over the crevices and these worm holes, that the rock will loose its ability to handle nitrates, too.


Good read... anyways

This is what I was talking about...told you my memory was bad.

P.S. I have a good memory just not a long one.

[michika]

I can tell you from first hand experience there is an "expiry" date on your rock and I definitely noticed it when my system hit is threshold for nutrient export. Granted at the time it was really difficult to see and pinpoint, but in hindsight and after having made numerous unsuccessful changes before swapping out my rock.

I plan to rotate pieces in and out of my new tank to try and address this long term, plus teaming this up with aggressive alternative nutrient exporters, skimmer, media, filter socks, etc.