Krish
RF STAFF
I've never tested for iron etc. Is there any livestock in the tank now? If not, you may want to toss in either a raw shrimp or something to feed the bacteria in your rock or you could wait it out a few days and test your ammonia levels seeing you said you used cured liverock. If this is so, you may be fine to toss in your first fish or two. The bacteria in your rock will need to be fed so if the rock isn't experiencing any die-off due to it actually being cured then I'd add your first fish or two like I mentioned to help keep the bacteria going granted your tests come back reading zero ammonia and nitrite after a few days.
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