I honestly would stick with Bayer. I've used a couple of different dips, and nothing worked like Bayer did. I would literally pour Bayer in with out measuring. As long as the water is super cloudy, and U can't see the coral, then U know its strong enough. Hahah. Like Steve said, U wanna shake, spin, twirl the coral as hard as u can in the dip. Just placing the acro in the dip isn't enough. When I was using Revive, it was super stressful on the acros, and I lost a few pieces. After switching to Bayer I never lost one acro. The pic U posted looks like tissue is missing. Could be from an worm bite, or something else. They usually leave tracks, little bite marks going up and down the corals. If u have eggs and works big enough to see, then U are probably infested. Remember AEFW are very hard to see. They blend in to the acro they are eating. Green acro = green worm. Blue acro = blue worm.