Review on 🔍 Maximizing Purity: Unlocking the Power of the Captive Purity Refractometer by Tropingzz Cece

I love this product. It's significantly cheaper than comparable refractometers, but very accurate (I've compared it to my LFS, which is "brand name") and calibrated lab reference solutions (I have a chemistry lab at work). I'm fed up with my "floating pointer". An SG gauge (Fluval's brand name), mainly because it needs to be perfectly aligned for accurate readings, but also because algae builds up in it and cannot be cleaned. This suction cup gives me instant, accurate reading with no guesswork. Love love love this. (If you know the science behind it, there really isn't much reason to be cheap. I mean cheap ;-) . A refractometer cannot be as accurate as we need it to be, even for a fairly sensitive tank. As long as the scale is engraved well enough that you can calibrate it (and you should!), it's really simple optics - you're not taking 32MP photos or measuring UV laser wavelengths, just bend the light a little and measure the angle. .)