addictedreefer
New member
Yes, dry rock often has detritus, but it doesn't need "sterilized" - acid baths strip away the surface layer that may contain phosphate - not a given, but dependent on the rock itself, and acid baths are often commonly done to "renew" previously used rock. I have never come across dry rock that needs "cured" - a term used to process die-off from fresh live rock. I recently restarted my 9g with dry rock, and had zero nutrient leaching from the rock.
I made no assumption with the term "nutrient-free", but simply stating that adding dry rock will result in a new cycle is false - a cycled tank can process nutrients much more efficiently than a new sterile tank. It is also dependent on the amount of potentially "nutrient-laden" rock that was added, and whether it had been rinsed/ soaked prior to introduction to the tank.
I am also not aware of the "common knowledge" with regards to Marco rocks, and I doubt most aquarists using it have to wait "several weeks to months to cure" it. I have seen many threads here and elsewhere where it is used with minimal prep. While it is indeed possible the OP now has a "<1 month old tank", it is an assumption to state such without proper testing...
Please cite an example of someone using dry rock that did not experience a cycle. That is the very reason that the dry/live rock debate has raged so fiercely over the years: dry rock = no hitchhikers but requires lengthy cycle and maturing time. If dry rock did not experience a cycle, I'm pretty sure the debate would be over by now.