Hmm... y'know that ANY detectable nitrItes aren't good for coral, right? Maybe a testing error?
That calcium is really really high and way out of balance with the kH
. I don't think it has the potential to kill off coral, but it does lead one to wonder about other things that may be out of balance too. Yeah... I know he's been adding stuff to get the kH
up, but it just may have thrown everything out of whack. I'm not an SPS
guru, but I know they're a bit more finicky than LPS
. You might forward this link along to help him get his water parameter back in line...
Chemistry and the Aquarium
Better yet... have him join the site so you don't have to be the "in between!"
So it sounds like it's just one SPS
(the birdsnest) that's dying? If so, and he's only had it for 2 weeks, I wouldn't necessarily assume something is bad with the tank/water. It could just be bad luck, or poor acclimation/shipping. How exactly is it dying? Or is it just bleaching? If it went from one type of lighting to a much brighter lighting scenario, it could just be stressed due to the sudden change.
I'm assuming salinity is around 1.025 and temp around 78-80 or so, since the LPS
are all doing fine?