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carbonate hardness
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  1. Fertilizers and Water Parameters
    I am trying to keep my KH stable at 3 or 4dKH. I've heard that it is better to dose the tank's water changes with KHCO3 rather than NaHCO3 since potassium is readily taken in by plants whereas sodium is not. Any KHCO3 branded products that you would recommend to buy online? is ADA Brighty K...
  2. Fertilizers and Water Parameters
    Hi I was not going to do this for a while but the whole Lowering KH thing stirred the questions.:icon_wink Guru warning, I know this is contrary to some dearly held Guru Views, as well as cut-‘n-paste-Google experts; cut-‘n-paste-Google-experts ought to be ashamed. On...
  3. Fertilizers and Water Parameters
    I AM IN NO SUGGESTING OR RECOMMENDING THIS TO ANYONE! This is in response to a question asked in another thread, people are curious why folks have so much difficulty altering the pH of their water with acid. Indeed it is Alkalinity of which carbonate hardness KH, is a subset that...
  4. General Planted Tank Discussion
    I just added a pressurized CO2 system to my 29g tank. The issue I'm running into is that my tap water's KH is about 1 (or less than 1). So, if I were to aim for 30ppm CO2, that means my PH would be 6.0, based on the pH/kH/Co2 chart. I would like my pH to be more like 6.8, which means I need a...
  5. Fertilizers and Water Parameters
    I recently revamped my 75 gal. with a heavy plant load. My pH was 7.6 with a kH of 5. Those numbers were stable for a few days before I increased my lighting to 3 watts per gallon, began CO2 injection, and started dosing dry ferts. I've only done one day of macros (about 1 1/4 tsp total dry...
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