I have tested my PH for the past two weeks and every time I have tested it, it was around 7.8. So I added some marine buffer to raise the PH and it did for the moment but when I test a couple of days later it's back at 7.8. So i figure it's the alkalinity so I test it using the API test for KH&GH and the test came out weird. It was extremely high, it took me 28 drops to turn the water from blue to dark yellow. Does anyone know what I can do about this??