Will a male guppy make a bubble nest?

Yes, male guppies can create bubble nests as part of their breeding behavior. They produce bubbles using air and mucus to form a floating nest, which serves as a place for females to lay their eggs. However, bubble nesting is more commonly associated with some species of bettas and other anabantoids than with guppies, which are livebearers. In guppies, males may display this behavior occasionally, but it is not as prominent as in other species.