Orange Algea

Maverick

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Entire lake on my local commercial was covered in an orange floating algea today that drifted in the wind.

Have seen it last year on another lake. Anyone know what it is called and what causes it?
 

ukzero1

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@Maverick

It's known in sea water as well as fresh water. With saltwater it's known as sea sparkle algae (it glows in the dark). It occurs in situations of warm weather and very calm conditions and is more common in fish tanks where the tank water hasn't been changed regularly. It's not harmful to humans but can cause fish a lot of grief. Has the owner or bailiff been informed of it? Because to me, it says the lake isn't getting much, if any, aeration in warm weather. Here's what happens to a lake with no aeration. The algae can be any colour, but mostly blue/green. orange, white and brown are other colours.

1568998061635.png
 
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Maverick

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Thanks for the explanation. It does have a sparkle to it in the sunshine. The owner is aware of it he can't fail not to be. It does look like a sign that all is not well. Not seen any dead floating fish yet thank God.
 

ukzero1

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It needs some sort of aeration to oxygenate the water.
 
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