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That's a great tank, I used a similar one for a flower anemone tank plumbed to my display tank's sump some time ago. Someone will pick this up soon for sure. GLWS!
That's a very easy to understand explanation of OSC, thank you and Gemini! I'm just plain curious, could you explain how you are using this functionality with your pump?
I used the brs rox for a long time, but the quality went down some years ago and I switched to Seachem's Matrix carbon. It's little tiny spheres, it's easy to work with and rinses fast. The largest size they sell is 1 gallon buckets.
https://www.seachem.com/matrixcarbon.php...