Pond algae aquatic behave like other pond plants
Because pond algae are plants they thrive on sunlight and nutrients (fertilizers) and warm temperatures. This is why pond algae problems are really worse in summer
How To Remove Suspended AlgaeWe must unfortunately accept that even in the best fish ponds algae will always be a threat. By far the best way to control suspended algae and it works every time for this type of algae is to install a CORRECTLY SIZED UV light before the filter. This works very simply. Water containing the suspended algae is pumped through the UV light device and all the algae (and only those pumped through the light) are killed by exposure to UV light. Many UV devices are shaped like this *****
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Correctly sized UV & Biofilter combos GUARANTEE crystal clear and clean healthy pond water. |
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Upon dying the algae clump together becoming much bigger than 4 microns. Because they are now much bigger this means most well designed filters are able to remove the dead algae. In all likelihood the algae are still forming in your pond but the UV light is killing them FASTER than they are forming.
It is important to remove the dead algae in a filter because if they are allowed to sink to the bottom of the pond they can pollute the water quite badly and remove oxygen from the pond water.
When a pond is badly infected by green water caused by pond algae then your fish can all suddenly die and this happens overnight normally. The reason is again simple and is because algae are plants - they produce oxygen during the day (in the photosynthesis process) but they produce carbon dioxide at night by taking oxygen out of the water.
Algae in large mass can totally deplete the oxygen from a pond. The fish therefore suffocate. This is also very much more common in heat wave situations because at higher temperatures water can hold less oxygen anyway ... read this article
Algaecides can be effective in ponds but have to be used continuously and very carefully. Not recommended get yourself an UV clarifier.
The UV clarifier is one of the very best inventions in pond keeping.
For guaranteed crystal clear clean and healthy pond water buy low cost combo biofilters and UV units containing the best biomedia, Alfagrog, by clicking this image Combo filter & UV
"The Complete Pond Solver" by Tony Roocroft
2005 Edition. Essential reading for anybody who wants or has a garden pond. Get 12 Excel pond calculators free as well as "Water Lilies and Pond Aquatics" ebook also free
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