Drop checker starting off green out of water?
I don't know what the heck I'm doing wrong...
I made a 4dkh solution. I have accurate scales, I double checked everything, and my KH test confirms that it is a 4dkh solution... 2.4 grams of baking soda to 2 liters of distilled water. 150 ml of this solution to 1350 ml of distilled water.
I've added between 7-20 drops of the ph drops to the drop checker. It's green out of the water. I left it in the water for 2 hours, still green. I did a test tube of ph drops and my 4dkh solution, green. I tried my own ph drops instead of the ones it came with, same thing. I tried shaking the crap out of the test tube and drop checker thinking perhaps there was CO2 dissolved in it somehow..
I'm at a loss.