← Amphibian glossary · 💧 Water

Water hardness & pH

Also called: GH · KH · pH

Water hardness (GH/KH) and pH describe the mineral content and acidity of tank water — parameters that matter because amphibians like axolotls need moderately hard, stable, near-neutral water.

GH is general hardness (minerals), KH is carbonate hardness (which buffers pH and stops swings), and pH is acidity. Very soft water or a crashing pH stresses aquatic amphibians. The water interpreter reads your test and tells you what to fix.

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See also

Nitrogen cycleDechlorinator

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