I have a fairly large reef tank to begin with. The tank is larger than the recommended size for this product. My tank is about 221 gallons. I threw it in the tank and let it run for a couple of days. I can only measure tank cleanliness with ORP. While ORP is not a perfect measure of purity, this is the data I have. After doing this for a few days, my ORP has never been this high. Visually, the water dosage appears much clearer. I think this device works with visual clarity and ORP level. Even with a slightly larger tank. I was expecting to see more skimming, but I didn't see any changes there. The PE on the corals in my tank also seems to be better, which is the most important thing for me. I will most likely stop using carbon in my aquarium and see if it becomes a better substitute for water clarity. I will update the review if I remember other results.
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