Join Date: Jul 2010
Location: Winston Salem NC
Deciphering test colors.
So I just picked up an API GH and KH test kit. The instructions say for KH that the water in the tube should turn FROM blue TO yellow. It comes out of the bottle yellow....this doesn't seem right. I added 6 drops..nothing but yellow. Again, It came out of the bottle yellow. No hit of blue.
Alright, weird test. Not sure what the results were, but lets move on to the GH test. Instructions state that the water in the test tube should turn FROM orange TO green. Once again, straight from the bottle the drops are green. It doesn't have to touch the water in the test tube and I can tell it's green.
It's like something has contaminated my test before I ever got them am I right?? GH exp date: 03/2018, KH exp date 03/2020.
What am I missing?