just make sure the "dip" is thoroughly rinsed off the coral before they are bagged. some dips are strong and can linger . causing irritation the whole time it is in the bag. i think some of these dips are designed with putting the coral in a tank afterward in mind. may be wrong but just a thought. i know i used coralrx on everything before a swap just to be sure and i wasnt able to rinse them thoroughly enough and they were irritated big time. they never really opened up well.