API- GH KH Hardness Test Kit

API+GH+KH+Test+Kit

Kiểm tra độ kiềm KH (carbonate hardness) và tổng độ cứng GH (total hardness) của môi trường nước ngọt. API GH & KH Test Kit. LH:092.5684616 ...

How to test GH and KH Using API GH & KH Test Kit in Aquarium

How to test GH and KH Using API GH & KH Test Kit in Aquarium! A little information about what is GH, KH, and what they stand for, how to test GH and KH, water ...

API GH and KH Test Kit | Why and how You NEED To Test Your Water hardness | Hindi

Hey guys, Do you test your aquarium water hardness? Do you know why you need to test aquarium water hardness? Did you buy ...