Originally posted by SWNewb
Using uncured LR will cause you to have high ammonia for a while, probably a couple weeks atleast. Good way to cycle your tank, but not a fast way. It's all good in the end though and I would not do it any other way.
I'm disagreeing here; I used uncured LR in my 55g and my tank cycled in 7 days exactly. The ammonia spiked and zeroed in 4 days. I didn't use live sand, only uncured, unscrubbed LR.
I would also put your skimmer on, especially if you didn't pre-scrub your rock when you put it in your tank. I know that my rock had plenty of dead stuff on it when it was in the tank and most of it floated around the tank until I cut my skimmer on (I cut mine on the 2nd day of the cycle). Even with only rock you won't believe the amount of tank debris you get out.