Sharks and Rays

Ray-finned fishes

Eels and Morays

Halosaurs and deep-sea Spiny eels

Jellynose fishes

Lightfishes and Dragonfishes

Live bearers, Killifishes and Rivulines

Perch-like fish

Antarctic dragonfishes

Asian leaffishes

Asian seaperches

Asiatic glassfishes

Australian salmon

Bagless glassfishes

Barbeled grunters

Barbled plunderfishes

Bigeyes or catalufas

Butterflyfishes

Cales and weed-whitings

Catadromous icefishes

Chameleonfishes

Climbing gouramies

Collared wrigglers

Combtooth blennies

Crocodile icefishes

Crocodile toothfishes

Deep-sea scalyfins

Deepwater cardinalfishes

Drums or croakers

Emperors or scavengers

False scorpionfishes

False trevallies

Freshwater sleepers

Freshwater tripletails

Grunters or tigerperches

Jacks and pompanos

Kissing gourami

Lanternbellies, temperate ocean-basses

Long-finned pike

Longfin escolars

Mackerels, tunas, bonitos

Moonyfishes or fingerfishes

Oceanic basslets

Patagonian blennies

Pike-, tube- and flagblennies

Sand stargazers

Sea basses: groupers and fairy basslets

Slimys, slipmouths or ponyfishes

Slope dragonets

Snake mackerels

Snaketooth fishes

Southern basses

Southern sandfishes

Spadefishes, batfishes and scats

Spiny plunderfishes

Splendid perches

Surgeonfishes, tangs, unicornfishes

Temperate basses

Temperate perches

Threadfin breams, Whiptail breams

Threefin blennies

Pikes and Mudminnows

Pipefishes and Seahorses

Pricklefishes, Bigscales and Gibberfishes

Puffers and Filefishes

Pygmy sunfishes

Scorpionfishes and Flatheads

Sticklebacks and Seamoths

Sturgeons and Paddlefishes

Swallowers and Gulpers

Tarpons and Tenpounders

Trout-perches, Pirate perches and Cavefish

Velifers, Tube-eyes and Ribbonfishes

Lobe-finned fishes

Setting up your tank

DIY Fish Tank Stand

250L community aquarium

Dusky betta (Betta fusca) fish species and information / pictures of Dusky betta - Betta fusca

Dusky betta (Betta fusca) fish species information

Scientific Name
Betta fusca

Common Name
Dusky betta

Biology
Dorsal spines (total): 0 - 2; Dorsal soft rays (total): 7-8; Anal spines: 0 - 1; Anal soft rays: 23 - 25; Vertebrae: 29 - 30. Head length 33.2-33.8% SL; anal fin rays 24-25; lateral scales 29; body depth 30.9-31.7% SL; predorsal length 68.5-70.2% SL; preanal length 49.0-50.3% SL; and body length 70.4-70.8% SL (Ref. 56386).

Classification

Classified By

Regan, 1910

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Gouramies (Osphronemidae)

Distribution

Region

Asia

Distribution

Asia: Sumatra, Indonesia.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

22 °C

Water Temperature To

26 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 5.5 - 7.0; dH range: ? - 12 benthopelagic

Trophic Level

3.25 s.e. 0.42 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

8.2 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Aquarium: commercial

Vulnerability

Low vulnerability (10 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated