Adding dry rock to existing system.

clancaster23

Reefing newb
I have had my 180 running for about a year now and I started it with about 100 pounds of new dry rock from Reef Rocks. I now want to add 50 pounds to it and possibly another 50 a little later after I see how it looks with the first 50. I'm obviously going to rinse it off really well when I get it since I know from when I got the first batch that it was pretty dusty out of the box but would it effect the tank at all if I put 50 pounds of new dry rock in all at once? I'm guessing it shouldn't bother it much at all considering there's nothing alive on it and there wouldn't be any die-off going on in the tank but want to be sure. I have the tank pretty well stocked by now as far as fish goes and don't want a recycle.
 
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