i just acclimate them like a fish.float them in a bag a few minutes then pour some water out and add some from the tank and wait a few minutes,do it again then remove from the bag and put in the tank.i don't like their water getting in my tank unless its a coral that can't be exposed to the air,then i have no choice.it takes 20-30 minutes my way.mushrooms are hardy so they would probably live if you just put them in without acclimating but i like to be safe.