I picked up a couple of small zoa frags yesterday. When I got home, I did my usual FW dip. I add a pinch of baking soda and a drop of iodine to a container of water and then soak the zoas for a few minutes ( about 5 ) in it. I've done this with all of my other and never had a problem but this time, one of the polyps on a 2 polyp frag fell off. I glued it back on but as of now it doesn't look good and the other is hanging by a small piece of tissue from the rock. The other frag seems to have melted away overnight. It was about 5 polyps of a small zoa but there's nothing on the wrong that I can see now, even a mat. Did the dip do this?