I have to disagree with you on this Scott. I spent some time at the Mindstream booth at this MACNA talking to their representatives and still believe that they will bring their product to market and that it will work well. They have secured significant (well over a million dollars, if I recall correctly) venture capital after the Kickstarter campaign failed, have overcome a number of engineering issues, including the brush that wipes the sensor plates to clear them of biofouling, and are planning to launch next year. Hopefully it will be in the early part, but the rep was not willing to make any projections. I'm going to sit tight and see what MindStream does before I write them off. IF it works as well as they say, it will be a pretty awesome real time testing solution.They are way behind on their intended launch plans and their showing at the last 2 MACNA's was very dissapointing. They have had no real working demos and if you didn't know what Mindstream was, you certainly wouldn't have figured it out from their booth. Considering that they were trying to secure funding at MACNA 2015 through crowdfunding which they didn't make their mark, the effort to present themselves in their booth and at MACNA 2015 and 2016 along with their marketing was pretty disappointing. Especially at such a big venue. I don't have much faith in them or their product and I am certainly not holding my breath. It's a neat idea if it works but the discs will be costly too. Accuracy is critical and given their lack of effort to present themselves, it doesn't bode well for the quality of their product. Especially if they are trying to secure funding from marine aquarium industry. Just my .02..
Whether GHL can produce an accurate and precise alk and calcium monitoring solution is an unknown. But if they can, that will be huge as well. Add that to what Neptune is doing with Jim Welsh's device -- which is a proven solution but with an unknown timeline for launch-- and we should see the holy grail of reefkeeping finally realized hopefully in 2017. Exciting times.