The sign of changing live rocks

[7thheaven]

Some reefers change the live rock periodically.

Is there any sign of changing live rocks?

[Robert Laschober]

hi,
do you know why they are change the live rock, I never herad this, but it´s okay, if you bring in after a while some new live rocks to bring in some new bacteria.

robert

[AUSTZEOHEAD]

I think 7th Heaven is talking about the Zeorock.

Just monitor your water levels, i find that the tank looks a lot better after a rock change out (now on my 3rd) and my redox goes up.

Cheers
Che

[keigo]

I never heard of the need to change live rock...
It's a very expensive method if you want to try that

[invincible569]

If your rocks are filthy.. i would change. I have heard that I have very clean rock and wonder how I keep it so clean. For me, there is no need to change.

[Todd March]

One of the theories is that by exchanging out your live rock for new rock at intervals over the years, you will never experience "old tank syndrome"—essentially a tank crash. The thought is that the LR can accumulate noxious gunk similar to a DSB over many years time, and constantly rotating your LR can avoid this...

Seems like you would need to cure the rock in a dark container, similiar to the "cooking" process before adding to your tank.

Who knows...?