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- Jun 5, 2023
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They have the rocks in a big trash can filled with water. Does that make a difference in the length of quarantine time?If it's coming from a tank at the LFS that has fish and corals in it then yes you should quarantine it. Think of it like letting the rock lay fallow - you are just waiting for anything like velvet to die off. If it came from a big tub of wet rock then you should still quarantine it. There might still be unwanted things in there; generally those rocks are pretty sterile but contrary to what Brandon likes to post everywhere, he has not actually personally visited and audited every LFS on the planet so you really have no idea how long that rock has been wet or what it has been seeded with. They could have stuck it in there five minutes before you walked in the store. They could have broken down a customer's tank that was in the middle of a velvet outbreak and dumped all the rock in there. You just don't know. Frankly it's a waste - not only does it cost more per lb, but it weighs more because you're paying for the water too. But while you're quarantining it all you have to do to keep the bacteria alive is keep it wet. Ambient light is enough.
Unless you can source 'real' live rock (It does NOT need to come from the ocean. Any suitably mature and diverse tank is going to have all the microfauna you need) just get dry rock and a bottle. You'll end up in the same place and save a lot of money.