For some reason, when I read that sentence I picture a mushroom cloud.

I think I have unresolved tension with aptasia...

Me too. Sometimes peppermint shrimp work for people but sometimes they don't.

You can do it!!! If you could design something usable, accurate, and marketable you could do quite well for yourself.
5% accuracy is fine -that's what we're all used to anyway. More accuracy is better of course. I don't think you could market something with less accuracy than test kits.

Same here :)

I have spent at least 200$ on peppermint shrimp in the last year with zero luck. And I am going through a bottle of aiptasia x every two weeks. My last hope is a copperband butterfly . I am hoping Jl has stock soon. I have hundreds of them in my reef this pest taking over my tank :(

There's 2 kinds of peppermint shrimp, only one kind eats aiptasia

Yes please!! I had no idea how critical testing and monitoring is, until I started keeping a mixed reef. And the main drawback to testing is what a PITA it is using test kits. And if one has the 649 lotto funds waiting in one's bank account to buy fiddly probes and all the associated paraphernalia, there is still the ongoing expense of probes and such. And the required furniture to store it all.

I'm diabetic and blood glucose monitors have come a very long way since the very first, paperback-sized one I had 35 years ago. Now they read the blood drop itself, where back then it was spectral analysis of the reactant strip. Of course they are also much smaller now but that would be a lesser consideration for me personally when it came to a saltwater parameter measurement device.

The glucose monitor I have now is an accuchek compact, which uses a pre-loaded barrel of 17 tests - the "test strips" basically function like flat pipettes that draw the blood into a transparent chamber for the optical reader to scan. I've often wondered if this principle could be applied to testing saltwater parameters of various types. The "test strips" cost about $1 each at retail, however they don't have any chemical or electronic function, purely mechanical - and of course they are the way the meter companies make their money because the meters are free to diabetics.

I'd pay good money for something that measures salt water, which for me would be up to $200 if ongoing expenses for stuff like calibration were very low or non-existent. If there were significant ongoing expenses, my limit would be maybe $150 because of the time a single device would save.

This has been a big hmmmmmm...... in my mind for a while now. I picture something that would read an entire spectrum and output levels of each parameter, perhaps to an app of some type.

Well, we are blue-skying, right? :biggrin:

Sorry for the long post - I don't know if this is any help. :neutral: