Got it thanks last question of the day lol. Now are all kalkwasser the same supplements?When I had a 50 gallon tank, I would use 2 gallons of Kalk for the week because I had alot of SPS and clams in the tank. You're gonna have to find the right balance and it depends on what you have growing in your reef. Kalk precipitates when it reacts to oxygen so only, mix what you need and use it. Some reefers leave the sediment (calcium dust at the bottom of the 1 gallon container) and just mix that with fresh RO water before dripping. Start off slow, check the alk and ca so that it doesn't sky rocket overnight.