Yes, no and maybe. Confused? Well, it is one of those times you need to keep track of your parameters. If your PH is low, you can pump the kalk to it. If your PH is high, you'll need to lay off the kalk. Take PH readings at different times of the day, every hour should do it (although some would say 15 minutes or so). If your reading are low, start a drip and monitor it closely. A day off is best as you can keep tabs on it. Start with a drip every couple seconds and check Ph frequently. I would say every couple minutes or so, I have an Aquacontroller so I can just take a quick peek and see the level. If you don't have an electronic controller, I would check at least once a minute for the first hour. Start with a SLOW drip, the PH will jump rapidly. When your lights are off, the PH will go down and your drip should increase. It is a pain in the rear end. Best thing if you have the cash.... Get a calcium reactor and drip kalk.
