sera kH-Test 15 ml, 0.5 fl.oz. Aquarium Test Kits

I like the quality of the materials, the glass vial with stopper, and the dropper itself has a nice design.As to its accuracy, it matches my API test kits, and is no more difficult to use.

This test work it. I tested it with RO/DI water, so I knew the exact KH.

This titration test is easy, accurate and worth it. You can easily see the color change when it happens and have confidence in the results, unlike test strips. KH or alkalinity is very important for fresh and salt water aquariums. If it’s not in the range that promotes pH stability, then the ph will shift too fast and cause harm/death to your fish and invertebrates. If you have a hard time reading test strips for KH, try this!

This test kit is a must if you own an aquarium. It helps you maintain your water quality. It is easy to use and easy to see the results.

Color is way more pronounced than API. With API I always had to guess the color a little, this one is very dark and pronounced, and very accurate. I tested it with remineralized water so I knew the exact KH.

There are so many of these test kits that make you discern between varying levels of the same color. This has simple instructions and results.

I couldn't get any drops out of the bottle. This was a waste of money.

I got sent a box that was already opened. The reagent bottle was already opened and the instructions were missing.