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Excellent product. I tested on number of items before using it on Aquarium and worked. Went purple with bleach and red with vinegar then neutral with water.
Verified purchase: Yes | Condition: New
So I got this and I tested my aquarium water at different occasions and colour won’t change I got suspicious and checked different waters it still won’t change its just pieces of normal paper what a con product
Verified purchase: Yes | Condition: New
Quite simply, you can only balance your pH if you test whether you are over-acidic, or your alkaline levels are through the roof! These strips are so easy to use, and you can check the colours against the enclosed chart. Their numerical value can be found in the sellers description on eBay.
Verified purchase: Yes | Condition: New
Perfect for the cheap price but came with no chart to let you know what colour it should be, it turned green, googled a chart and luckily found out that's exactly right for ph readings
Verified purchase: Yes | Condition: New
Works well, I use along with a digital PH reader to be certain that I'm getting a fairly accurate reading.
Verified purchase: Yes | Condition: New
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