I've never heard of green water algae bloom in water coming from a faucet! Is it well water? Here's the thing, you can "try" using it but in an aquarium with lights and nutrients if it is truly green water algae it's going to only get worse in the tank. Which means you'd need to run a UV
sterilizer to keep the green algae killed off since it's free floating algae. Or your other option is to use RO
water and remineralize it.