Nitrate levels

[Reefer Rob]

Likely you had die-off on your rock from the move. Given time it should come down provided you don't have too much livestock in your tank. Your tank will go through a lot of different stages as in establishes itself, I wouldn't worry about it unless it threatens your corals (if you have any). 25 ppm won't hurt anything, but your corals won't "color" nicely at that level.