I Have A UV Light In My Pond But Still Have Green Water

John writes, “I have a 1500 gallon backyard pond and have installed a uv light in it which was supposed to help with green water problems. It doesn’t seem to be helping very much, and I wondered if I did something wrong?”

Answer: Hi John and thanks for the question. Your plan to use a uv sterilizer in your pond to combat green water is a good idea. In truth, when you hear companies talk about fighting pond algae problems with a uv filter, it’s single cell, or green water algae that they are talking about specifically.

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Can Pond Algae Still Grow In The Winter?

I’ll share a recent and common question that always comes in during the colder months of the year.  This one is from Robert who has a small pond that he keeps open year round.  He was somewhat surprised to find algae growing in the water, even with the pond being surrounding by snow and the temperatures are still quite cold.  He asks if this is at all normal?

Answer: As odd as winter algae may sound, it’s really not unusual for small pond owners who may choose to keep their pond open all winter long.

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Can A UV Pond Filter Control Algae?

A UV pond filter may be one of your very best options at controlling algae in your small pond or water garden. UV or ultraviolet light is touted by manufacturers as a very good tool for algae control but some of the claims need to be clarified to ensure that this type of device will actually help you with your current problem.

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Using A Lake Rake For Pond Weeds And Algae

Some large pond owners find themselves in a battle as pond weeds and algae attempt to take over their ponds. In spring and summer around most of the U.S. it’s not uncommon to see algae growing well on many waters and pond weeds growing below the surface. For some time now, the most likely response …

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