It's definitely very strong. My biggest complaint is that at the recommended dosage, the water is so cloudy you can't tell if anything is coming of the coral. Also the coral continues to reek of RPS even after it's been thoroughly rinsed in a fresh salt water, so I'd make sure to follow the instructions on rinsing pretty closely, especially if you've got a smaller system or are dipping a large number of corals.
however, it doesn't seem to destroy AEFW eggs, at least I didn't think so based on the reef central thread on the topic. Since the claim to kill eggs was the main thing that set this apart from the other dips, and I don't like that I can't see what's coming off the coral, I'm not sure I prefer this product.
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