Need ID - Angel fish with unknow disease or parasite

[Finney]

20G
Nitrate 20
mitrite 0
GH 300
KH 40
PH 7
ammonia 0

I cannot find anything that looks like what  this angel has
It comes from inside him under skin, then pushes through skin and scales
I can't see any parasite or movement even with a magnifyong glass
They are black and started out that way, first one to appear was on his body near the ventricle fins, then the ones above his anal fins, first one side then same place on the other side. now there are more showing up. One under his pectoral fin is black inside. Non of the other fish show any symptoms. He acts and eats normally

Is this some bizarre form of hexamita? I can't find anything to match it to and not sure how to treat...

Thank you for any insight or advice

[Carl]

The video does not play.

Do you have another picture/video you can share?

[Finney]

Sorry, trying again

youtu.be/cMPCDdknWXE

[Carl]

Aug 9, 2021 14:51:01 GMT -5 Finney said:

Sorry, trying again

youtu.be/cMPCDdknWXE

The video is set to private

[Finney]

Apologies! I appreciate your time


youtu.be/cMPCDdknWXE

Filename
small angel.mp4

[devonjohnsgard]

Hi there.

It appears to be Saprolegnia mold on a open wound. I can't say what the wound is from, but it has a secondary infection of mold. Here's a resource of how to treat it and find the cause to correct it as well.

www.americanaquariumproducts.com/Columnaris.html#fungus

Hope it helps!