Hi benYes that will be fine. An hour you might get aay with too. Wrap up the rock in news paper and then wet the paper. Then it stays damp.
If they are in that temp thing a long time, it may be worth doing a water change every now and again and maybe hook up a little internal.
i have to disagree with the newspaper and live rock then soak it i have had a problem with that before the ink inthe news paper runs throug the live rock meaning it is able to poision the tank
Young fisher
i will figure you out a Fish list you can keep in your tank how many liters is it again
thanks