I float mine for at least a half hour. Then dip in Lugols ar Seachem Reef Dip. Always, Always, Always dip your corals, no matter where you get them from. No friend, or trusted LFS would intentionally give you red bugs, flat worms, or nudis. Sometimes things are not found until after the fact, and then a friend needs to make phone calls. Seen it happen way too many times.