How do you get wrigglers out of the fresh rainwater tank?

To remove wrigglers, which are the larvae of mosquitoes, from a fresh rainwater tank, start by physically scooping them out using a net or fine mesh strainer. You can also introduce natural predators, like fish or certain insects, which will help reduce their population. Additionally, ensure the tank is covered to prevent mosquitoes from laying eggs and consider using safe larvicides specifically designed for water tanks. Regularly clean and maintain the tank to prevent future infestations.