Living on the bottom in the bathypelagic zone.

Of, relating to, or inhabiting the depths of the ocean, generally between 1000-4000 metres but the term is sometimes extended to include shallower zones.

Ligament, sometimes ossified, which joins the 1st centrum with the supracleithrum. Helps anchor the pectoral girdles to the sides of the fish.

Term used most often in the southern United States to refer to a lowland, typically sluggish or marshy, creek or small river that is a tributary of a larger system.

Fluoroquinolone antibiotic effective against many aerobic bacteria, but particularly gram-negative and mycoplasma forms. Produced and marketed for veterinary use and used to treat fishes in some cases.

Leaf of the deciduous tree genus Fagus. Dried and used in aquaria to simulate certain natural conditions, especially those typical of blackwater habitats.

Term used in India and Bangladesh to describe a low lying, water-filled depression on a floodplain, sometimes becoming dessicated during the dry season. Also spelled 'bheel'.

Inhabiting or relating to the bottom of a body of water, e.g., a benthic organism.

Used in reference to fish species living or feeding at or near the bottom of a water body. Some of these may also do so in the midwater or surface levels.

Feeding on benthos.

Organisms existing in, on or near the bottom of a water body. Sometimes used to refer to the bottom itself.

Method of biological filtration used in marine aquaria utilising live rock rather than a traditional, mechanical filter unit.

Brand name for a range of antiseptics containing povidone-idodine sometimes used to treat ornamental fishes.

Having two points or cusps. Commonly used in reference to teeth.

Divided into two parts or lobes.

Split or divided into two forks or branches.

Divided into or having two lobes.

A binomial name.

The two part name of a species used in zoological nomenclature comprising generic (for the genus) and specific (for the species) names which form the full scientific name when combined, e.g. Carassius auratus.

The scientific system of naming an organism using two terms, the first representing the genus and the second the species. Also referred to as 'scientific name' or, somewhat inaccurately, 'Latin name'.