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small black dots on roots of water sprite

brhau

Member
Joined
10 Jul 2020
Messages
130
Location
San Francisco, CA, USA
Hi all,
I've recently noticed the accumulation of small black dots on the roots of my water sprite. They're shaped like ostracods and are of similar size, but they don't move. Here's a wide shot so you can see how many there are:
IMG_2833.jpg


And here are a couple closer shots to see the shape:

_DSC0510.jpg

_DSC0511.jpg


Any ideas on what these could be?

Thanks,
Ben
 

dw1305

Expert
UKAPS Team
Joined
7 Apr 2008
Messages
14,614
Location
nr Bath
Hi all,
and see if anyone has any ideas.
Not really Ben, I have something similar in some of the more "black water" tanks, but they aren't on Ceratopteris roots, it is the bladders of Utricularia gibba. Apparently they can use organic carbon as a food source.

cheers Darrel
 

brhau

Member
Thread starter
Joined
10 Jul 2020
Messages
130
Location
San Francisco, CA, USA
Hi all,

Not really Ben, I have something similar in some of the more "black water" tanks, but they aren't on Ceratopteris roots, it is the bladders of Utricularia gibba. Apparently they can use organic carbon as a food source.

cheers Darrel
Thanks, Darrel. I do have Utricularua growing there also, so that’s consistent. Do they seem innocuous to you?
 
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