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does the GH of water change if you don't change it? For instance, my tap is about 80ppm, after 4-5 days is the tanks water still going to be the same? I don't really check it because it is niether too hard or too soft to worry about it.
Next, my ph is about 7.2 out of the tap with a kh of about 30ppm(1.75°). In one of my tanks this ph is good but with the addition of co2 the ph fluctuated quite drastically. Now my question is, does the kh effect the fish. say I raise the kh but the ph stays the same how does this effect the fish? I have the kent kh, and I put too much in one time and the ph only went up .2 but the kh was 240ppm. not at once but over the course of a few days.
•gh does it change over time in the tank
•kh what is the difference to the fish if the ph is 7.2 at 30ppm or 7.2 at 240ppm(hypothetically)
Next, my ph is about 7.2 out of the tap with a kh of about 30ppm(1.75°). In one of my tanks this ph is good but with the addition of co2 the ph fluctuated quite drastically. Now my question is, does the kh effect the fish. say I raise the kh but the ph stays the same how does this effect the fish? I have the kent kh, and I put too much in one time and the ph only went up .2 but the kh was 240ppm. not at once but over the course of a few days.
•gh does it change over time in the tank
•kh what is the difference to the fish if the ph is 7.2 at 30ppm or 7.2 at 240ppm(hypothetically)