Labyrinth Fish

🐠 Labyrinth Fish

What Are They?
Labyrinth fish belong to the family Anabantoidei. They are unique because they have a special organ called the labyrinth organ, which lets them breathe atmospheric air in addition to extracting oxygen from water.

This means they can survive in low-oxygen environments like rice paddies, swamps, or stagnant waters.

🔹 Common Labyrinth Fish in the Hobby

  • Bettas (Betta splendens) – Includes veiltail, halfmoon, crowntail, koi, and wild betta species.
  • Gouramis – Dwarf Gourami, Honey Gourami, Pearl Gourami, Three-Spot/Blue Gourami, Gold Gourami, Opaline Gourami.
  • Paradise Fish (Macropodus opercularis) – Hardy, colorful, slightly aggressive species.
  • Climbing Perch (Anabas testudineus) – Rare in aquariums, famous for “walking” short distances on land.

🔹 Care Overview

  • Tank Size: 5–55+ gallons depending on species.
  • Water: 74–82 °F, pH 6.0–7.5 (varies by species).
  • Diet: Omnivores — flakes, pellets, live/frozen foods.
  • Tank Setup:
  • Calm waters with plants and hiding spots.
  • Access to surface air is essential (never seal tanks airtight).
  • Floating plants are highly appreciated.

🔹 Behavior

  • Often peaceful, but males (bettas, dwarf gouramis) may be territorial.
  • Many species are bubble nest builders.
  • Excellent centerpiece fish for community aquariums (if tankmates are chosen carefully).

✨ Fun Fact: Bettas and Gouramis can sometimes be seen gulping air at the surface — that’s their labyrinth organ in action!