Rock goes through all kinds of stuff when it's shipped, so don't fret it
Get your LR water up to about 1.025 and 78-82F, and start curing it
Give it a powerhead with your heater, and some air input helps if your powerhead allows
What kind of cycle do you want to start ?
Do you want to cure/cook you rock in a tub, or do you just want to put it in your tank ?