pH Rises.....Any assistance?
So I have a refugium with a 8K light and lights on my main tank. When I do a water change my Ph is at about 8.2. Over a period of a day or two it seems to rise slowly to about 8.4. I am not sure if 8.4 is high for my reef but either way I am trying to figure out why it rises. I usually use some vinegar every couple days to lower it back to 8.3 or so. I do have a kalk reactor and I do dose with an auto top off (Tunze Osomolater). Not sure if I am putting too much kalk in but I was under the impression that the reactor/auto top off combo should stabilize this? Any help would be appreciated.
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