If all the guppies and water snails were killed what would happen to population of archer fish?

If all the guppies and water snails were killed, the population of archer fish would likely decline significantly. Here's why:

* Food Source: Guppies and water snails are primary food sources for archer fish. Without these prey, archer fish would have a very limited food supply.

* Competition: Other fish might be able to exploit the lack of guppies and snails, increasing competition for remaining food sources.

* Starvation: With insufficient food, archer fish would face starvation, leading to death and a decline in population.

* Reproduction: Lack of food would also negatively impact reproduction. Archer fish might have difficulty producing healthy offspring or might not have the energy to reproduce at all.

However, there are some potential mitigating factors:

* Other Prey: Archer fish are opportunistic feeders and might be able to adapt to eating other insects or small fish, though these might not be as readily available.

* Migration: Some archer fish might be able to migrate to areas with more abundant prey.

Overall, the loss of guppies and water snails would have a severe and negative impact on the archer fish population. The extent of the decline would depend on factors like the availability of alternative prey, the severity of the food shortage, and the ability of archer fish to adapt or migrate.