Dead Algae?


Mmathis

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I read about this a lot. What does dead algae look like? And I know this sounds like a stupid question, but what causes it? How do you get rid of it?

Is this dead algae? These were taken in my QT. The stuff just floats there, but breaks up easily and is very fine. It's a darkish, greenish brown. It doesn't float up or down in the water, just congregates.

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Mmathis

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Does it kinda ball up? This looks like what I called the "snot" in my pond. It sits on the bottom and floats during the day and is a slimy almost cottage cheese consistency.
Not really. And once it accumulates, it seems to stay in one spot unless I disturb it.
 
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Meyer Jordan

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Any idea what makes it different from "regular" algae? And why would it be in the QT but not in the pond? These different types of algae are all mystifying!

What do you call 'regular algae'?
There are about 8,000 different specie of 'Green algae' in the present data bases, but it is estimated that, including those yet to be named, this figure is closer to 22,000 different species.
I am not sure that there is a 'regular' algae.:):)
 

Meyer Jordan

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I read about this a lot. What does dead algae look like? And I know this sounds like a stupid question, but what causes it? How do you get rid of it?

Is this dead algae? These were taken in my QT. The stuff just floats there, but breaks up easily and is very fine. It's a darkish, greenish brown. It doesn't float up or down in the water, just congregates.

View attachment 83329

Can you post any better close-up photos of this alga?
Not wanting to alarm anyone but after looking more closely at these photos I see some resemblance to Cyano-bacteria (Blue-Green alga) which can be toxic.
 
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Mmathis

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@Meyer Jordan By "regular algae," I meant the stuff we usually see in the pond: the stuff on the liner, string algae, and the suspended stuff.

What I can do on the pix is post them NOT in a collage. They were pretty close-up shots to begin with. But, if this doesn't help, I can take some more and use "macro." Let me know.... And just for fun, I might try to look at it under the microscope, but I can't take pix of that.
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Meyer Jordan

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Toxic to what?? I have stuff that looks like that as well... :wideyed:

Exactly why I hesitated to in posting that comment. Blue-Green algae (Cyano bacteria) is quite rare in a garden pond setting, but it can occur.
The odds are highly in favor of what MMathis posted photos of as being just a specie of FA.
bubbldragon.jpg

An example of typical FA.(Notice the Oxygen bubbles)

greendots3.jpg

An example of a Blue-Green algae.
 
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What TM has does not look like cyano to me.
Cyanobacteria can almost look like there was some paint spilled in the pond, plus it will have a smell that smells different from typical plants and soil.
It's too bad that the term "blue-green algae" is used. It can be confusing.
 
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Mmathis

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I tried unsuccessfully to take any better pix than the ones already posted. But here are some pix from where a patch of it was growing among some Parrots feather roots -- I took 3 shots, zooming in. It has an unpleasant musty odor, if that helps.

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