Yeah, I played around with sulfur denitrators in the past. You nailed it in that you really need an ORP monitor for that. I didn't have one and I found it a challenge to dial in a flowrate that would remain steady state and still allow it to go anaerobic. I like the idea of those for something like a large FOWLR or predator tank.
The pellets are a set and forget thing, I like them that way they are super easy - but I just find it odd that there seems to be the occasional claim of bleaching. Very much in the minority but yet still often enough to dismiss it as a coincidence.
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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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