What is High Range Ph?
Also what is the simple Ph?
I really dont understand it at all.
I know certain fish should be kept at certain Ph's but i dont know why this is?
And why you test for it?
Is good to have your High Range Ph low or high on the chart?
I am not knew to the Api Test Kit but just never use to test it beacuse i didnt understand it but i think it might be important.