Measuring NH4, PO4, NO2, NO3, O2, Ca continuously
I've started a saltwater reef tank and I'm enjoying it but I'm interested in getting some electronic monitoring of critical water parameters.
Most parameters are determined by eye with colorimetric assays, Hanna sells handheld colorimeters for more accurate readings. I would like to measure
as many of the relevant parameters as possible electronically, but I'm not sure this is feasible.
Thermo does sell probes for some of these compounds but they're very expensive, is there any way to measure these parameters electronically? UV-vis
seems to require reagents to get spectra for most compounds, does Raman spectroscopy even work with liquids? Any thoughts on doing this on the cheap?
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