New to scoping... Costia?

[island_pondscum]

Good evening, I'm thinking this is Costia. Can someone with more scope experience confirm that or tell me I'm stupid?

This is all the magnification I have available.

Thanks!

 

[JRS]

Nice picture. No scope experience myself, just looking at others' pictures. Can you see the little tails? I have read Costia has these and look kind of like a comma. If not, perhaps Chilodonella which is similar?

 

[Mgessert]

I don’t see any flagella. Where is the sample from? Any symptoms?

 

[island_pondscum]

Exactly, although I read somewhere that they don't have flagella in all stages of life.

 

[island_pondscum]

Oops, forgot to mention, there are no symptoms behaviorally... except he's a tank right now and hanging out above the airstone, probably in lieu of rubbing against rocks. No clamped fins, eating fine, etc.

 

[Mgessert]

I can imagine some C shaped nuclei and suspect Ichthyophthirius multifiliis, ie Ich, but am no expert. Please see this article for pics and info.

CIR920/FA006: Ichthyophthirius multifiliis (White Spot) Infections in Fish

University of Florida, Institute of Food and Agricultural Sciences Extension outreach is a partnership between state, federal, and county governments to provide scientific knowledge and expertise to the public. The University of Florida (UF), together with Florida A&M University (FAMU)...

edis.ifas.ufl.edu

 

[Mgessert]

I see you’re in WA. Someone at the vet diagnostic lab there might be willing to take a look at your photo.

https://waddl.vetmed.wsu.edu/labs-sections/aquatic-health

 

[island_pondscum]

Hey, thanks, I had no idea there was anything like that!