Okay. So, if I've already added about half of it, how long should I wait to put the rest in?

It did not have any light on it, and the powerhead pretty much kept it warm enough. I didn't check the temp. or any of the levels, but it didn't smell bad. I've heard that was a pretty good indication of whether it was cured or not.

I have some saltwater mixed up right now. Maybe I'll wait a while. If my ammonia 5pikes, how long will it take to notice? I have another week off for the holidays, so I guess I could wait a little longer. I've got the right side of the tank's rockwork all done like I want it. I was going to start on the left side, but I think I'll wait to see what kind of response I get now.

Thanks for the input so far!