Started this discussion. Last reply by Jesse Sampson Oct 5, 2016.
Hello all. I heard that carbon is bad for plants as it removes nutrients from the water and I wanted to know if the black sponge found in some filters are made of carbon.
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Posted by Tuh Bahd Phish on March 5, 2019 at 10:12am
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Posted by Zachary Kittle on October 30, 2018 at 10:51am
Started by Richard in General Discussion (off topic). Last reply by D Feb 19.
Started by Zachary Kittle in General Discussion (off topic) Oct 31, 2018.
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