Betta fish make bubbles in the fish tanks, but you don’t know why.
Betta builds bubble nests for the same reason any other animals build a nest; to provide shelter for their eggs and young from predators such as larger fishes and other birds who may see them as food sources.
Here I’ve explained why does my male betta fish make bubbles on the top of the fish tank.
What is a Bubble Nest
A fish tank bubble nest is a phenomenon that is found in the betta fish tanks. It has been observed that the betta fish make bubbles on the top of the tank water with a specific purpose. In the nest, betta use bubbles as a shelter for fertilized eggs and young fry.
How Betta Fish Make Bubbles
Betta fish are bubble breeders. The male creates bubbles around them using air he has swallowed and mucus which comes out of its mouth through specialized glands on either side of the mouth.
The bubbles are made from air and mucus that the fish produces; basically, they’re spit bubbles.
These bubbles are air bubbles coated with the betta’s saliva.
This saliva gives the durability of the bubble so that it lasts long enough for the fertilized eggs to mature.
There are many other bubble breeders in nature. For example, Blowfish is the most prolific bubble nest builders.
They use their pectoral fins to create bubbles by sucking air into themselves and then spitting out a film of saliva onto it, which causes the film to form a bubble on demand.
What Does a Betta Bubble Nest Look Like
Bubble nests are tiny and fascinating. They have a soft outer shell. The color of the betta bubble is determined by the temperature of water in the tank they live in. In different temperatures, the color changes from yellow to white.
Why Does my Male Betta Fish Make Bubbles
The reason that betta fish make these nests is quite simple: they have an instinctual need for shelter when spawning or caring for young fry in order to protect them from predators such as larger fishes and birds who may see them as food sources.
Bubble nests also provide a place for the eggs to safely hatch while giving the eggs the oxygen they need to develop properly.
The hatchling fish also need the shelter of the nest after they’re born since they’re very poor swimmers in the first few days of their lives.
Some male bettas will instinctively create bubble nests even if they’re in a tank with no female betta. Why would this be? There are some theories, but there is no one definitive answer to that question.
One theory suggests that the males do this as an exercise for their gills so they can stay healthy when living in small tanks or bowls where water quality might not always be perfect; another possible reason could simply have something to do with instinctual behavior patterns.
In nature, males make these structures as part of courting rituals to attract females or protect their territory.
Male Bettas will instinctively spend time building nests out of boredom or lack of stimulation but there is little evidence linking behavior problems in captive-bred fish to nesting behaviors.
People who keep tanks with both male and female fish report male bettas will sometimes instinctively spend time building nests, even if they’re in a tank with no female bettas present.
Betta fishes are popular pets in the aquarium. They are small, colorful, and their movement is very fast. This makes them an ideal pet for children who are interested in learning about nature.
I’m an aquatic veterinarian have a love for aquarium fish. The purpose of creating this blog is to share my personal experience and expertise with the most popular Betta Fish as well as other fish. If you are, interested in caring for Betta fish species just like me? Follow my articles and guides.