Aquarium Pharmaceuticals Test Kit GH/KH
Used a pure water source and tested the calibration for both test kits using a measured dosages of water hardness. Pretty accurate results. The colors read much better results than test strips which are mediocre at best. Highly recommend this line of water testers. Clear instructions are provided along with a summary of them on the back of the test result color chart in case you ever lose the instructions. General insight on what the kit measures and why it is important is also given.
July 5, 2014
Simple drop type test kit. Performs the task with a minimum of work.
December 10, 2013
Good Product, Good Price
What can I say? API makes some of the best tests in the hobby. Accurate and for a pretty good price. Easy instructions, good design.
November 27, 2013
Very good product
I need to test for kh hardness for my angelfish and blue rams and local pet stores only gh hardness test kits . I get stuff i order from Drs.Foster & Smith amazingly fast.
November 6, 2013