Couple Questions

[Eb0la11]

Hey guys,

just got back from the LFS with a new blue tang, a couple blue/green chromis and a pulsing xenia. I have also got a bag of aragonite sand for my refugium which, up until now, has been bare.

Im wondering a couple things.

Where is a good spot for the xenia? I have a Coralife Aqua Light Pro that is about 28" above the bottom of the tank. This light has 3x 250W MHs and 4x 96W Blue Actinics. Where is a good place for this guy in those parameters?

Also, with the sand, am I ok to add it to the system after washing it or should I slowly introduce it or what? Its brand new in the bag from Golds Aquarium.