Lots of green stringy algae???

[Fugly69]

Hey there. I have a small concrete pond ...I did a full water change in May, which I got scolded for doing in this forum lol...anyways I have a uv filter ...and I am just noticing lots of long stringy , algae possibly clinging to the rocks and the sides of the pond. Wondering what the cause of this can be. I'd like to sort it out before winter sets on. I live in Windsor Ontario Canada. Could it be because the uv bulb is shot??? See attached photos...

 

[WaterGardener]

Lovely pond.

What you have is string algae. It's easily removed by hand. I use a toilet brush taped to a bamboo tomato stake so I can stand by the pond and wrap the algae around the brush. Then I can scrub it off the walls with the brush.

UV only kills single cell algae that lives in the water itself. The kind that turns the water green. It doesn't affect string algae.

 

[jgrandmont]

What you have is string algae. It's easily removed by hand. I use a toilet brush taped to a bamboo tomato stake so I can stand by the pond and wrap the algae around the brush. Then I can scrub it off the walls with the brush.

Uv only kills single cell algae that lives in the water itself. The kind that turns the water green. It doesn't affect string algae.

Yes, you've got string algae. As @WaterGardener said, UV has no effect on it. In order for UV to work, the algae has to be free-floating in the water and actually pass by the UV light. I, too, use a cheap dollar store toilet brush to remove string algae.

 

[j.w]

What brings the string algae is nature and you added fish which feeds the plants and algae w/their droppings. Adding more plants that you want in there will help suck up the extra nutrients in the water. Algae will not leave this earth but we can eliminate some of it. Toilet brush and more plants.

 

[Fugly69]

Lovely pond.

What you have is string algae. It's easily removed by hand. I use a toilet brush taped to a bamboo tomato stake so I can stand by the pond and wrap the algae around the brush. Then I can scrub it off the walls with the brush.

UV only kills single cell algae that lives in the water itself. The kind that turns the water green. It doesn't affect string algae.

Thank you very much

 

[WaterGardener]

You are very welcome. I would think that we all have it to some extent so everyone has their way of dealing with it.