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Home›Glossary›P

Glossary

pH crash

Sudden and rapid drop in pH, usually occurring in aquaria or ponds with poor buffering capacity. Can be fatal to fishes.

Related terms

alkalinity
Measure of the buffering capacity of a given water body, i.e. its capacity to neutralize acids and bases thereby maintaining a fairly stable pH. Water containing compounds, such as bicarbonates, carbonates, and hydroxides has a stronger such capacity and is referred to as hard water, while water lacking or deficient in them is termed soft water. Soft water aquaria tend to be susceptible to pH crashes if not maintained correctly.
osmotic shock
Rupture of cells in a solution as a result of a sudden reduction in osmotic pressure. Can cause severe issues in fishes when the chemical composition of the water changes rapidly, e.g., during or following a pH crash.

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Seriously Fish · est. 2009

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