measuring orp isn't needed / you can monitor what comes out with a nitrate test kit.
How hard is it to dial it in without one
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measuring orp isn't needed / you can monitor what comes out with a nitrate test kit.
not hard at all start out with low flow until you read zero on a nitrate test. My unit is large and I start flow at 25 ml a min. Once you get to zero slowly ramp up flow still achieving zero. Reading ml makes it easy and use stop watch on cell phone .
You need to make it a very slow slow drip until you get 0, the first one takes the longest as the bacteria culture is just starting. It should just be barely dripping out to start.
This type of set up doesn't kick in overnight . It takes time for the bacteria to grow. Be patient it's the complete opposite of a bio pellet reactor it wont cloud your tank and kick in way to fast killing the tank . Once you get your levels to where you want you will forget all about the set up time involved .
Did you rinse your sulfur first? I'm about to setup mine. I have everything built.
Just to give an update. The reactor has finally cycled. I have turned the flow up today to around 3 drops a second. Will check it in a couple hours to see if I need to turn it down. Didn't expect it to take a month, but so pumped it's making progress.