My PH is staying about 8.3 but I havnt been dripping kalk because my calcium was getting a little on the high side 480. Since this my alkalinity has come down to 8.4 dkh. What should I do to raise it.
Your alkalinity is still in the NSW range, if the Ca levels are exceptable and you aren't getting pH swings, you don't really need to tweak it. If you insist on tweaking :lol: I would go with baking soda. This should raise your alkalinity.
