My pH was doing pretty good at a range of 8.0's - 8.1's sometimes it would hit 8.2 and I was happy with that as corals we're "surviving" and some seemed to be thriving but now my pH has hit lows down to 7.76 but it mainly doesn't go under 7.8. I started running a skimmer and my apex doses 100 ml of full strength kalkwasser ever 6 hours because my daily alk consumption from my Trident tests is very low and the kalk dosing does lower my salinity per the conductivity probe you can watch it go down from 35 ppt to 33.5 while adding that 400 ml of kalkwasser through the day even though the extra freshwater not needed by the auto top off will just evaporate over the day the salinity will not come back up till I manually fix it. The kalk does raise the pH after dosing but not by much, sometimes really none at all almost. Any suggestions? Im stuck right now because I don't want my alk getting crazy high, id love to be dosing more kalk but the alk consumption just isn't there to justify it. What should I do about this?? CO2 scrubbing is not an option, windows open during the day doesn't help at all. I've tried it too many times to count.