Wow that sump is a work of art.
That's a lot of dry rock you'll be using. You may already be aware of this but a word to the wise regardless - expect phosphates and lots of it. I think it's getting to be more and more recognized that dry rock emits phosphates like crazy but even two years ago when I got my 280g going it wasn't really a universally recognized thing. 2.5 years in for me and I still have massive PO4 coming out of nowhere if I let the GFO slide. A bit disappointing because it's a much bigger expense than I expected. I'm considering building a lanthanum reactor at some point to experiment and compare results.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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