Fish farming

Fish farming

Of, or pertaining to the artificial mass cultivation of fish

Industry: Fishing

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Fish farming

Iodine

Fishing; Fish farming

A trace element necessary to life in very small quantities, but deadly at higher concentrations. Because it is removed by protein skimming, it must be added regularly on skimmed tanks. It is ...

Literally chalk-water, this is water with calcium hydroxide Ca(OH)2 dissolved in it. Adding kalkwasser is the preferred way to maintain calcium levels in a marine tank with growing corals, clams, and ...

Killiefish

Fishing; Fish farming

This family of small freshwater fish are seldom found in pet stores. They live only one year, laying eggs that can survive harsh conditions.

Length frequency

Fishing; Fish farming

An arrangement of recorded lengths which indicates the number of times each length or length interval occurs. For example, 10 measurements of lengths are taken in the following order: 10, 12, 12, 14, ...

Lift tube

Fishing; Fish farming

A source of water movement used with under gravel philtres and some other filters, such as sponge filters. Large bubbles are released in a tube about 1 inch wide. As they rush upwards, they pull the ...

Live bearers

Fishing; Fish farming

Fish which produce live young rather than laying eggs. These freshwater fish include guppies, mollies, platies, and swordtails.

Live rock

Fishing; Fish farming

These are rocks removed from the vicinity of a tropical coral reef with all of the life intact on them. They commonly have algae, sponges, worms, feather dusters, small crustaceans, polyps and ...