Guest Author - Jilly Florio

What does it mean when a betta blows a ton of bubbles? Is he sick? Actually, a bubblenest just means he's just happy, and feeling amorous.

I get a ton of letters from readers asking if it's normal for a betta to blow bubbles in their tanks. These bubbles are called bubblenests, and a big nest means your fish is feeling all right with the world and is hoping for a date!

The male will collect gulps of air and blow them back out. The air, mixed with betta mucus, makes for tiny, sticky little bubbles that form a dome. These nests could eventually be home for fertilized betta eggs, which the male cares for after mating with a female. A little nest means your betta is happy and healthy, and a gigantic nest means he is feeling absolutely super and would like a girlfriend.

If you have any nest at all, you can lean back and feel good about your betta parenting - keep up the good work! And refrain from adding a female betta unless you are specifically trying to breed. Breeding bettas is NOT a project for most keepers and requires much study and preparation before attempting. The mating process is complicated, and frequently violent for both male and female. Remember that while your betta is "feeling his oats", and is trying to show it, he is NOT PINING AWAY for a mate; he is showing the world how good he feels. Making a nest is just something a betta male is hardwired to do.

If your betta male is not making nests, you might take a look at his conditions. Do you change his water often enough? You can try more frequent changes. Are the water temperatures too low, and uncomfortable for him? Bettas like water in the high 70s, for example. Is he a part of the household, able to watch you and the world go by? A betta housed in a lonely corner will languish from lack of stimulation.

Keep in mind that some bettas will simply not make a nest. Some are not so good at it, even when they try. Your little bettas are individuals, and nests might not be his thing, even under perfect conditions.

Of course, if you are using an airstone or bubbler, you will also not see a bubblenest!

Betta Care Basics

Care for your bettas right!