gh Kh API test kit
I have a nice cycled tank with only an apple snail, ottos and one blue pearl in it. I am trying to decide what kind of shrimp I would like to put in it and was trying to test GH KH
I have the API test kit. The problem is, it says to drop in drops until the water changes to yellow (kh) and green (GH) . My problem is, I can't figure out how deep a color I need to get to. They change to a very light see through version of each color very quickly .
By 3 drops they are both definitely yellow/green but still light. The chart that comes with the kit has GH an KH numbers sharing drops
1 drop - 17 gh/kh
2 drop - 35 GH/kh
3drop - 53 gh/kh
Is it possible to have a GH and KH of the same number because it seems to me, they both took 3 drops so my numbers would be
Am I not understanding this kit?