plantnoob
Aquarium Advice Freak
Nope. How you clean your filter should have no bearing on the pH. Ammonia and nitrite maybe, but not the pH. Are you sure there is no change to your well/tap water? Perhaps worth checking it again after agitating it and letting it sit for an hour or so. Otherwise I'm stumped as to why your pH would keep going up. One other possibility is if your substrate is not inert, that could be contributing to the increase.
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