Which fish makes a nursery out of bubbles?

Siamese fighting fish, which live in the muddy waters of Thailand and Cambodia in Southeast Asia, have a special way of caring for their eggs. The males of the species build a nest of bubbles among the plant leaves. To make the bubbles, the fish swims to the surface of the water, takes air in its mouth, coats it with saliva, and spits out the bubbles, which stick together on the surface of the water. After the female hatches her eggs, the male catches them in his mouth and spits them into the bubble nest. The male also guards the nest and protects the eggs from being eaten by other fish.