We're running our lights 10 hours a day. The green water is all gone!! I run into a friend of mine that runs the fish department at my local Petco.... I don't trust him because he runs a fish department but because he had some of the most amazing tanks I've ever seen! He told me a super easy trick to clear up the green water in about an two hours!
Step 1: Add 1/2 table spoon of peroxide for every 10 gallons of water
Step 2: Wait 30 minutes for the peroxide to do it's job.
Step 3: Add a good quality clarifier
Step 4: Let the clarifier work for an hour
Step 5: Change out your filter