Bubble nests, also called foam nests, are created by some fish and frog species as floating masses of bubbles blown with an oral secretion, saliva bubbles, and occasionally aquatic plants. Fish that b
Dwarf gourami bubble nest made of bubbles, floating plants and plant parts which were torn from a Hydrocotyle by the gourami male.
Betta splendens builds nests of varying sizes
Betta splendens fry in a bubble nest
The Anabantoidei are a suborder of anabantiform ray-finned freshwater fish distinguished by their possession of a lung-like labyrinth organ, which enables them to breathe air. The fish in the Anabanto
Labyrinth organ of a climbing perch (Anabas testudineus)
A male Siamese fighting fish, Betta splendens, is building a bubble nest.
The giant gourami, Osphronemus goramy, is often raised in floating cages in central Thailand.