Wrestling Halfbeak (Dermogenys pusilla) in aquarium
๐ŸŒฟ Freshwater ยท Tropical

Wrestling Halfbeak

Dermogenys pusilla โ€” Zenarchopteridae
๐Ÿ“ Size:ย 6-8
โณ Lifespan:ย 5
โญ Care level:ย Beginner

Overview

The Wrestling Halfbeak is a popular freshwater fish known for its striking appearance and peaceful demeanor. With a lifespan of around 5 years, it requires a minimum tank size of 20 liters and is suitable for beginners. These fish are slender with a silver body and black stripes, and they are best kept in groups for optimal behavior.

Quick fact: Dermogenys pusilla belongs to the family Zenarchopteridae. Care level: beginner.

Scientific Classification

RankClassification
FamilyZenarchopteridae
GenusDermogenys
SpeciesDermogenys pusilla
Water typefreshwater

Natural Habitat

Native to slow-moving streams and shallow rivers in Southeast Asia, the Wrestling Halfbeak prefers water with a sandy or muddy bottom.

Appearance

These fish have a sleek, compressed body shape with a silver base color and distinctive black stripes running vertically along their sides.

Coloration: silver with black stripes

Behavior

The Wrestling Halfbeak is generally peaceful and can be kept in a community tank with other peaceful species. They are active and should have territories to avoid aggression.

TraitValue
Temperamentpeaceful community fish
SchoolingNo
Activity levelmoderate
Important: requires territories

Water Requirements

ParameterIdeal RangeNotes
Temperature22โ€“28ยฐC (72โ€“82ยฐF)Use a reliable adjustable heater
pH6โ€“7Avoid sudden swings
Hardness (GH)5-15 dGHSoft to moderately hard
Ammonia0 ppmAny detectable ammonia signals a problem
Nitrite0 ppmToxic even at low levels
Nitrate<20 ppmManage through regular partial water changes
Min. tank20L (5 gal)Larger tanks are easier to keep stable
Important: Always dechlorinate tap water before adding it to the tank. Chlorine and chloramines damage a fish's gills and reduce life expectancy.

Interesting Facts

  • They are known for their unique fighting behavior with other fish.
  • Their diet includes insects, small crustaceans, and plant matter.
  • Wrestling Halfbeaks are known to exhibit parental care, protecting their fry.

๐Ÿ“‹ Full Care Guide

Ready to set up a tank for your Wrestling Halfbeak? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.

Read Wrestling Halfbeak Care Guide โ†’

Related Species & Guides

โœ“
Editorial review

This species profile was reviewed for biological accuracy and practical aquarium care guidance. For suspected illness or disease, test your water parameters first and consult an aquatic veterinarian if symptoms persist.