Fish farming

Fish farming

Of, or pertaining to the artificial mass cultivation of fish

Industry: Fishing

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Fish farming

diaphragm pump

Fishing; Fish farming

The most common type of air pump. A great variety of brands and styles are available which produce different amounts of air, with differing amounts of noise.

diatom filter

Fishing; Fish farming

This purely mechanical filter uses diatomaceous earth to remove very fine particles from the water. They clog quickly and are only used occasionally as water polishers rather than continuously.

diatoms

Fishing; Fish farming

Single-celled creatures with hard, silica-based shells. They look like a golden powder coating the tank to the naked eye.

discus

Fishing; Fish farming

These cichlids come from South America. They are somewhat delicate, large round flat fish, often with blue or red marbled coloring.

dosing pump

Fishing; Fish farming

A pump which can supply a very slow drip which is used to add trace elements or make up water for evaporation. The most common type is a peristaltic pump.

double-layered spira (DLS)

Fishing; Fish farming

A material made by rolling up a polyester pad and plastic wire mesh. It is used in both biological and mechanical filters.

effectiveness of fishing

Fishing; Fish farming

A general term referring to the percentage removal of fish from a stock (but not as specifically defined) as either rate of exploitation or instantaneous rate of fishing.