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I just purchased a drop checker from ebay and the instructions are not clear.
What water do you put in it? from the tap or aquarium?
The instructions say to put 7 drops of solution and to add 5ml from the jar. What the heck is the jar?
What water do you put in it? from the tap or aquarium?
The instructions say to put 7 drops of solution and to add 5ml from the jar. What the heck is the jar?