Review on Hanna Instruments HI781: Your 🌊 Reliable Low Range Saltwater Nitrate Checker by Randi Hernandez

I bought this thinking it would be as easy as my alkalinity test. NO. After watching the video of them the instruction makes sense. So far I've only tried it twice and each time I spill a little powder. I really want everything to be liquid. I also have an API version that I will probably use for my routine testing. I can't speak to accuracy as it always reads 0.0ppm which may or may not be correct (LOTS of algae in my tank but it can eat up all the free nitrate).