hammer 's are somewhat harty, did it come shiped in or local pickup? if shipped float bag for 15min or so, if local can kind of ship this step. i use a turkey baster and add water to the bag. when the bag get somewhat full, i pure or take some out and down the drain. adding the water slowly for about 15 min. after that i remove the coral and place in take low and go from there. the left over water in the bag can be dump down the drain.