Day 14
An interesting and potentially discouraging development.
Tank NO3 - still @ 75ppm (guessing, the colour pink does not match any on the chart, going on a guessed intensity)
Reactor effluent NO3 -- instantly off the chart. The colour readings only go up to 100ppm and you're supposed to wait a few minutes for the colour to develop, but the colour was well past the 100ppm right away when the drops of the second reagent were added.
I'm not sure what the next step is. Is this the reactor just cycling? Or is it a failure?
I don't know how much faith to put into this thing to guess how long I should wait before taking it off.
Feeling mighty discouraged ...
If I could make up 120g of SW I'd just do a 100% water change at this point. I don't know what to do.