GH and buffering

[fishfanatic2]

Is GH in anyway related to the buffering capacity of water? If so, how? TIA!

 

[gpodio]

Not to my knowledge.

Giancarlo

 

[brandon4291]

I'm under the impression it's KH or carbonate hardness that has acid-binding (buffering) capabilities. GH should be a measure of calcium and magnesium (carbonate??) in solution and is a measured aspect of hardness but not relied upon as a buffer. Sodium Bicarbonate (Arm and Hammer) can be used as a buffering agent. I am hesitant to say whether its the baking soda or the other one because I can't remember....I do believe its soda and not baking pwder?? someone help. Whichever one is sodium bicarbonate...

 

[brandon4291]

Just venture on over to Randy's chem forum and find some of his marine pH articles...same goes for FW buffering characters

 

[gpodio]

Yes baking soda to raise KH. Epsom salts to raise GH but that only adds magnesium so a calcium source would also be required. Otherwise Seachem Equilibrium is a very nice way to raise GH, also adds iron and potassium.

Giancarlo

 

[fishfanatic2]

Ok thnx guys.

 

[reefann]

Dow flake ice melt would be a good source of calcium if needed.