Welcome to the group, you will get great advice here from a lot of very experienced ponders.
I have current experience with green water so understand your desire to get rid of it, so give us some more information so we can give you some help. Starting with information about your pond: dimensions, gallons, filtration, aeration, water pump gallons per hour, fish and any other occupants of the pond and plants in the pond. Also have you tested the water if so what are the results. Finally, pictures are really helpful so add as many as you can that show your pond, equipment, fish etc. then we can give you some help tailored to your conditions and pond. And don’t add anything else to the pond, stop feeding the fish, and add aeration if you do not already have some going.
Lastly, nothing will clear up the green water fast that will last. Getting the conditions of the pond correct will start a natural process that will over time result in a gradual reduction in the green water until one day it is just gone. But even after that, you can expect an occasional algae bloom due to some new imbalance like over feeding the fish, or coming out of winter before the plants have recovered and started doing their job of reducing nutrients.
Finally, green water is not bad, just not pretty. It is an indication that there are to many nutrients in the pond and the algae are consuming them and in the process protecting your fish from lethal water conditions. Be patient and recognize that green is a good thing and a signal that something needs to change if you want to see your fish.
