ppm or dKH?
Got it! dKH: To convert degrees of German hardness (dKH) to parts per million (ppm), multiply by 17. To convert degrees of German hardness (dKH) to milliequivalents per liter (meq/l), divide by 2.8. This means my tanks dKH is 11! Hence my notoriously low ph of 7.8! This is the reason I bought Kalkwasser, which I used tonight for the first time. I used the slurry method. Next question: If my calcium is already high enough, will the Kalkwasser keep pushing it up? At the present time it’s a whopping 420! Thanks Pamela . Learning really is fun! (and we are such nerds!). Actually… your 11dKH and 420ppm Ca are quite good together. Only the hardcore stony coral keepers want/need higher dKH. Too much Kalk will push your Ca scary high… lets just try aerating your tank better to increase pH. Verify that this is the problem by testing a glass of aquarium water before and 12 hours after vigorous aeration. If the pH increases… you have
