Glossary: D

DAA

Dead after arrival, i.e. during or after acclimation.

Deionization

A water purification method, typically used in conjunction with reverse osmosis purification.

Detritivores

An organism that feeds on dead organic material, detritus.

Detritus

Waste or debris of any kind. Organic matter produced by the decomposition of organisms.

DI

See Deionization

Diatom

A microscopic single-celled alga that has a cell wall of silica. Usually one of the first forms of new life to appear in a new aquarium.

DIY

Do it yourself

DOA

Dead on arrival.

DOC

Dissolved organic compounds.

DOS

Dissolved organic solids

Dosing Pump

A controlled pump used to add water or trace elements to an aquarium at specified intervals. Good for automatically correcting evaporation or dosing kalk.

DSB

Deep sand bed. Generally 4 inches or deeper.

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