I like it Ken. The marine melafix has worked very well for me. It's what got rid of my AEFW. When I did water changes I used to treat the bucket and dip whole rocks in and soak for at least 5 minutes while I would blast with a baster. That is another story though. I don't trust iodine as a only dip method because it is not as aggressive as other products. Also, If I get a frag on a plug I break it off and throw it away. I dip the cutting and reglue it to a "clean" plug. This helps avoid unwanted algae, eggs, and anything else. I would rather nearly kill a coral than put an undipped frag in my tank.