HOW TO GET RID OF GREEN WATER?
Algae in the form of "Green Water" commonly occurs in ponds. The algae itself is not a problem but it looks unsightly and hides your fish.
Fortunately there are a number of things you can do to rid yourself of green water. Algae requires nutrients and sunlight to thrive - so therefore the goal of the pond keeper is deny algae these ingredients.
1. Shade as much of the water as possible with lilies and other aquatic plants. Algae requires
sunlight - so floating plants prevent sunlight from feeding the algae.
2. All aquatic plants absorb nutrients from the water that would otherwise be used for algae.
3. Feed your plants only as directed. Fertilizer tablets can be inserted into the soil - so the
fertilizer is absorbed by the plant roots with very little released into the water for algae to
consume.
4. Algaefix, Barley Straws, GreenKlean, Algae Destroyer, and any other Algaecide.
5. A guaranteed way to keep water clear is the addition of a UV Clarifier. Exposure to the
correct wavelengths of UV light kill the DNA in algae. Once it dies and clumps together, the
external filter can filter it out. This has become a very popular and effective way dealing
with green water.
RAINY DAY CHECK
Always check your water during and after a rain. If it's heavy rain, make sure no debris (leaves, mud, waste from around the area) are falling into the pond, if so, it's best to get as much out as possible. It is best to check the water afterward to see if a water change is needed.