Yeah, same here. I don't do them often enough but doing a water change has a visible benefit to my corals. I assume I'm replacing something that I didn't even know was there. My nutrients are all undetectable too.
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Originally Posted by Aquattro
Agreed. I don't personally change water to dilute nutrients, my NO3 and PO4 are undetectable. It's more "the breath of fresh air", but with water, that I'm trying to provide. With it, replace some of the depleted things I probably don't even know are in the water.
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