What is the best way to take an anemone off of live rock? I have read that putting ice on it's foot will make it come off, sliding a credit card under it and blasting it's foot with current. Will a scraper be fine as in the credit card method? Anybody have any other suggestions without hurting it? I want to return my anemones after having gotten feedback on what conditions are most suitable for them and although they seem happy now...I don't know what could become of them in the future so I would rather leave them to a pro to purchase and take care of them hopefully.