How to Culture Greenwater

Simpler, slower method

Put aged aquarium water in a clear container.

Expose the water to the sun. Doing this takes quite a long time for the algae to bloom. See the next method for something faster.

Faster method

Pluck 10 smoothly surfaced and thin leaves.

Wash and rinse the leaves until they are clean. Don't use soap!

Put the leaves in the blender with water. You can also add fish micro pellets to help the culture bloom more quickly.

Blend the water with the leaves. Do this for about 1 minute.

Sieve any blended leaves and put the water in a bottle.

Put the bottle under a bright light overnight so that the phytoplankton will bloom.

Fill a bucket with water.

Put the greenwater that has been sitting under a bright light overnight in the bucket.

Let the bucket sit under the sun. In about a few days, the phytoplankton will grow.