Practical storage guide
Aquarium Glossary
Definitions for common aquarium terms including ammonia, nitrite, nitrate, biological filtration, pH, GH, KH, salinity, and substrate.
Ammonia
A nitrogen waste compound produced directly or through decay.
Biological filtration
Microbial processing of waste compounds on oxygenated surfaces.
Nitrite and nitrate
Nitrite is an intermediate waste compound; nitrate is a later product managed through the complete aquarium.
GH and KH
GH commonly reflects dissolved calcium and magnesium; KH relates to buffering or alkalinity.
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