Jul 11, 2011 #1 tmdavies Aquarium Advice FINatic Joined Apr 26, 2011 Messages 573 Location wales i have api master test kit when i do the ph tests the low range says im at 6ph and the high range says im 7.8. which one is my correct ph
i have api master test kit when i do the ph tests the low range says im at 6ph and the high range says im 7.8. which one is my correct ph