The other fish acts as the male and fertilises a batch of eggs produced by the first fish, then the following night their roles are reversed and the second fish lays the eggs and the first fish fertilises them.
The following night their roles are reversed, and the second fish lays eggs and the first fish fertilises them. The other fish acts as the male and fertilises a batch of eggs produced by the first fish.
The other fish acts as the male and fertilises a batch of eggs produced by the first fish. The following night their roles are reversed, and the second fish lays eggs and the first fish fertilises them.
The other fish acts as the male and fertilises a batch of eggs produced by the first fish. The following night their roles are reversed, and the second fish lays eggs and the first fish fertilises them.