maroun.c

I love the ceramics rockwork! I'm considering using them for a 12" cube for my office. :-)

I would cure them for much longer. At least 6 weeks or so. If the rest of the rock is from an already established system, you should be alright though. Especially since it's dry going in.

is the ceramic glazed?

I do think soaking them in some kind of water would be wise. Freshwater or saltwater, or both. So zero-live rock in your new system? Not a big fan of that plan.

Thanks for the replies.
will only have the left island made of ceramics and all the rest will be 12 years old LR from my current system as well as some LR in the sump. Plan is to cure the Ceramics as it does leach some phosphates initially maybe in a container outside the tank, was thinking a couple of weeks but as matt suggested Ic an go for 6 weeks. and then when it's "clean" seed it from LR and Live sand.
Would that be fine?

Yes, that sounds fine. While it is curing, cover it up so nuisance algae doesn't take hold. It can cure in shaded water.

Will do that.

Looking forward to seeing these in your tank, covered in corals.