Ok so I’m new to this but I’ve been doing so much research for the past two weeks and I’ve learned so much. The only thing that is confusing me is when I’m looking at my test results using my API freshwater master test kit. There’s a pH test and then a high range pH test? When I use the pH test my reading is above 7.6. Then I go to the high range pH which it says I should use if I have invertebrates? What is the difference between the two and should my readings still be 7.0?