🐠 Hicarer Universal Alkaline Aquariums Increased: The Ultimate Solution for Optimal Aquatic Environment Review

Total crap, we tried drying different solutions, different water temperatures, different degrees of acidity. All readings were exactly the same. Damn, my sister pissed on it and nothing has changed, everything is stuck at 9. This isn't much different than the original stripe color, but slightly darker.

I needed them when studying nutrition. I say accuracy is good based only on my observation of how they repeatedly change color when used in the same liquid, be they acids or bases; I haven't compared their results to other pH methods, but I can't say they're inaccurate. It was way more strips than I needed but after a year they still work fine.

I used to rate them negative because I used the tremolo wrong. I didn't know that to change the color you have to insert the end of the strip with four colored rectangles. I figured any piece of paper would work because I've seen that happen in the past. However, I find them extremely difficult to use. The color change is hardly noticeable. I love the tester you dip it in and it changes color based on PH. I don't know, they seem strange to me.