melev

I've wondered about re-using dead coral skeletons in a calcium reactor for years. I asked about the chance of the stony corals releasing PO4 into the water, but never got an answer of any kind. So I thought, I'll take some of the former colonies from my last reef tank and immerse them in RO/DI water for a week and then test for phosphate.

I filled the bucket with water, and tested it. Zero phosphates. In a week, I'll test again. It's not precise, but...

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