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The process of slowly introducing and adjusting fish or other organisms to new water conditions, usually following purchase or transport from one aquarium to another.

Mechanical device that compresses air and forces it into your aquarium, via flexible tubing. Used to run air stones, undergravel filters, or decorations and create air bubbles that add oxygen to aquarium water.

Toxic chemical byproduct produced during the breakdown of proteins in uneaten fish food, decaying wastes, or excreted by fish through natural metabolic processes. It is converted into nitrite and then nitrate by naturally occuring beneficial bacteria in a process called the nitrogen cycle.

A type of medication generally used to kill or inhibit the growth of bacteria.

Contraction of "aquarium landscape." Refers to the overall physical design and layout of the aquarium interior including rock, plants, and accessories.

The natural process of beneficial bacteria breaking down harmful ammonia to nitrite and then converting nitrite to less toxic nitrate.

Acronym for "bubbles per minute," used to measure the amount of carbon dioxide bubbles released into an aquarium system when using a CO2 system.

Water that has a slight salt content with a specific gravity ranging from 1.006-1.015. Found naturally where rivers meet the ocean.

Tiny crustaceans often used as food for both freshwater and marine fish. Readily available live or in flake, freeze-dried, and frozen forms.