minimum live rock temperatures to keep live

[VitaminD]

I just salvaged a reef tank setup with about 50 lbs of decent rock and 40 sand. brought it home and set up in garage with circ pump, its still cool out , im able to get water to about 60 -65 with small heater i have , will the rock survive this at the temp until i get more heaters or get enough time to setup tank next week ?

 

[Lowstorm]

I've cycled live rock with just a maxi jet, no heater, in a small tub before. I'm sure it'll be fine.