Brown goo - not classical under microscope

rick_farr

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I have a photosynthetic brown goo on my tank. I’ve taken some images under a microscope which show they aggregate on a single almost fungal like hyphae.

Any idea what these are as they don’t look like diatoms or dinos!

IMG_4836.jpeg IMG_4829.jpeg
 

Dan_P

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I have a photosynthetic brown goo on my tank. I’ve taken some images under a microscope which show they aggregate on a single almost fungal like hyphae.

Any idea what these are as they don’t look like diatoms or dinos!

IMG_4836.jpeg IMG_4829.jpeg
I am leaning towards dinoflagellate. Association with filament might a coincidence, a nice place to anchor and/or filament is feeding the organism. @taricha ?
 

taricha

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I am leaning towards dinoflagellate. Association with filament might a coincidence, a nice place to anchor and/or filament is feeding the organism. @taricha ?
Right. Spherical coolia dinos. They are collecting around that filament as an attachment point.
 
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rick_farr

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I am leaning towards dinoflagellate. Association with filament might a coincidence, a nice place to anchor and/or filament is feeding the organism. @taricha ?
Thank you! I’ll try and treat for dinos and see how we go
 

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