Originally Posted by TygGer
1. Are there additional requirements for caring for live sand? Or do you just treat it like regular substrate?
2. I'm confused about adding cured live rock to an established tank. If I purchase live rock for the lfs
, can I just add it to my tank? I thought that if it was cured, it was OK. If not, how should I go about adding the rocks? I read in the Sponsored Forums under liverocks.com and they advised not to dip their cured live rocks.
3. What exactly is happening during a die-off process? Is it the micro-organisms on the rock dying and causing an increase in ammonia?
THe only requirements for live sand would be to have your tank in a condition that its condusive to saltwater life. No feeding or special care is required.
If the rock is indeed cured then adding it to an established tank will not cause issues. Often times the rock that is advertised as cured is not fully cured. Rock is only fully cured once its at a point that its no longer producing ammonia or nitrite. Most LFS
's will have big vats of rock and when they get new rock often this rock is cycled into the cured vats. So at any given point you could pick a cured rock or an uncured rock out of that cured rock vat. What I suggest is doing a mini QT
of the rock. Put the rock in a QT
enviorment for 24 hours. Check for ammonia and if you find there is no detectable amounts of ammonia or nitrite in the QT
tank then its safe to add this rock to the main tank. If you find only small levels of ammonia then you could add the rock to an established tank as long as the ratio of new rock to existing rock is not to high. If the ammonia level is high then you can be happy you didnt polute your tank with the uncured, cured rock.
During dieoff just as you described some of the items that make the rock its home are dieing off. This is usually a result of being exposed to the air for to long of a period or the temprature being to low for to long of a period during transport. The items dieing off could be sponges, small corals, bristle worms, pods
, bactera, and a multitude of other items.