Do you remove the male betta after spawning?

Yes, the male betta should be removed after spawning. The male betta's role in the reproductive process is to fertilize the female's eggs. Once the eggs are fertilized, the male's presence can actually be detrimental to the eggs and fry. The male betta may attempt to eat the eggs or fry, or he may harass the female, which can stress her and cause her to neglect the eggs. Additionally, the male betta may compete with the fry for food and resources. For these reasons, it is best to remove the male betta from the spawning tank as soon as the eggs are fertilized.