GH and KH
- Thread starter JohnMemorialHS
- Start date
GH is hardness, as when a fish is said to be a soft-water of hard-water fish.
KH is buffering, carbonate hardness, or alkalinity.
KH is buffering, carbonate hardness, or alkalinity.
really? so, the KH just determines what the pH will hover around? wouldnt adding CO2 effect the direct correlation between pH and KH? I dont quite understand what you mean...
I'd hit the plants forum for more detail on CO2. I understand it, but to explain it takes a while. Richer or Plantbrain would do a great job of explaining or pointing you to a related thread. Others will give some good insight too! I can tell you that pH, KH, and CO2 will all affect each other. If you mess with one, the others will change too!
CO2 injection doesn't affect KH in anyway, it only affects pH. When injecting CO2 into a fish tank, a small percentage of CO2 associates with H2O (the water) and becomes carbonic acid. That is what lowers the pH. We can determine CO2 concentrations by measuring KH and pH because there is a predicable trend between the 3 variables.
HTH
-Richer
HTH
-Richer
Yea, I just re-read what I said, and I was pretty unclear with what I was saying. What I meant was they form a relationship with each other, and to change either of the other two will change pH, although the amount of KH will help stabilize this change. For example: add CO2= lower pH, Raise KH= higher pH.
Due to the depth one can go into in this topic, I have left it to the pros to instruct others. I humbly bow out
Due to the depth one can go into in this topic, I have left it to the pros to instruct others. I humbly bow out