I have ordered from liverock.com on two ocsassions and this is what I noticed: First off, liverock.com's LR
is fresh aquacultured rock which is not cured or pre-cured. If you place this in an existing well established tank, then all you might experience is a minimal ammonia spike in which your bio-media can handle, so basically, do nothing.
If you place the LR
in a new tank that you are setting up, then your ammonia, nitrite & nitrate levels will go through the roof, but only for a short amount of time. (12 days vs a full cycle of 6 weeks). During this time, I made a 50% water change every 3 days on four occassions.
Reason being that unless you have LR
shipped under water, you will have some die off but not nearly as bad as transhipped LR
. That stuff will stink up your house for 4 weeks & you must cure it outside of your tank.
Since liverock.com does not cure their rock and they ship it to you overnight vs most places that use 2 day, it would be quite hard to find any other source that will give you a LR
that can be placed straight into an aquarium other than store bought cured LR
that has no lifeforms except for coralline algae on it.