im a little dissatisfied with this product when it works it works great how ever constant connectivity issues are huge annoyance. Every time I open my reef beat app I need to restart it atleast 4 times before it actually connects. Finally I have my doser set to dose 24 equal parts however I had a head turned off do to my magnesium getting to high and when I turn the head back on 1 out of 20 times does it actually give me the option to not try and catch up on missed doses and most the time it starts dosing all missed doses while my app disconnects from it and I can’t stop it from dosing a massive amount of what ever I’m turning on