Does My Water Garden Need a UV? A Simple Test
There are several types of algae found in a pond. One type may turn your water green, another brown, and yet another could mimic the smell of a sewer or dead fish. Answer three questions to see whether you need an ultraviolet light in your pond.
1. Is your water cloudy or green?
2. Does your pond or waterfall stink?
3. Have you forgotten how many fish you have or what color they are?
If you answered yes to these three questions, you may need an ultraviolet light
There are several types of algae found in a pond. One type may turn your water green, another brown, and yet another could mimic the smell of a sewer or dead fish.
Algae need nutrients to thrive. When a pond has excessive nutrients, it could be the result of too many fish. Also, it could be an inadequate bio-filter, over-feeding the fish, feeding them the wrong type of food, or run-off from the surrounding area depositing dirt, debris or fertilizer into the pond.
These pond conditions can be remedied by reducing the number of fish, if in fact it is over-crowded. Another remedy is to cover 50% of the pond's surface with water lettuce or hyacinths. A third remedy is to install a bio-filter; if you already have one, you can install a better, more efficient one.
In nature, if a pond is overcrowded, the strong fish survive and the weak perish. When our ponds are overcrowded, we compensate for the increased waste and by-products with mechanical devices such as bio-filters and ultraviolet lights.
If a natural pond is overcrowded and the nitrate and ammonia levels create vast algae blooms, the algae die, depriving the fish of oxygen and many fish die. Now there is less waste creating less algae, and the eco-system is once again balanced.
If you respond properly to the signs and signals provided by your pond, you can intervene in what would normally be a calamity. We can filter the water, irradiate it, buffer it, treat it, aerate it, skim it, cool it, cover it, monitor it, or change it. UV light is just another weapon in our pond maintenance arsenal.
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ABOUT THE AUTHOR
Douglas C. Hoover, CEO of Aquamedia Corp, Master Waterfall Builder, architect, engineer, freelance writer, author, designer & builder of over 2,000 waterfall and ponds in CA (30 years). Author of “Waterfall and Pond Construction Manual,” was $49.00 in bookstores, and for a limited time only $14.95 available as a downloadable e-book. Also "The Ultimate Training Course" has been reduced from $149 to only $39.95. Invented the AquaFill electronic water level control system for ponds, pools, fountains & spas.