mr_X
Aquarium Advice Addict
Yeah...you could do that. Run a HOB on it for a couple days. No worries.
You should not see a spike at all, unless you have your rock out of the water all day. if you get it in the tank in a reasonable amount of time, very little on the rock should die.
It will, but I don't think you will even notice it.
if it doesn't bother you, it shouldn't pose a problem. BTW, that's the first 40B I have seen with a center brace. I wonder if they are making them thinner now....
I would put it in the tank. What if the skimmer fails? Not only will you have no skimmer, you will also have no heat in the water.
Well, what sort of light was it coming from? I would start at about 100% blue for now, and ramp up the white over a period of weeks. Like 1 increment a week.