You can do this by two ways. You can change twenty percent of the water daily with fresh water until it is all changed out. You can also buy a chemical cleaner like Algone and dissolve it that way too.
fresh water
This will depend on how large the fresh water tanks are. Each person shoud have at least 5 gallons of water per day
Algae can grow in both fresh and saltwater environments, but some species are better adapted to one or the other. Saltwater algae, or seaweed, have evolved to thrive in high salt concentrations, while freshwater algae can be found in ponds, rivers, and lakes. Both types of algae require nutrients, light, and water to grow effectively.
ayiyill
Fresh Water Green Algae
fresh water algae
The fresh water green algae (charales), can reach up to 120 cm long. Hope that helps.
Euplotes are found in fresh water algae!
Green, lives in fresh water,and is algae
To remove algae from boat hulls, start by scrubbing the affected areas with a soft-bristle brush and a solution of water and mild detergent. For tougher stains, consider using a specialized marine algae remover or a mixture of vinegar and water. Rinse thoroughly with fresh water to prevent residue buildup. Regular maintenance, including rinsing the hull after use and applying a protective coating, can help prevent future algae growth.
There is some Blue green algae in nearly all water especially fresh water.
you buy an algae fish at a pet store to eat the algae.