Fungus?

[Jenni]

I’m wondering if anyone might know what this is? It’s appeared over the weekend on my panda corys (this one is the most heavily affected) and I think it’s starting to develop on my orange corys too.

Water parameters;
Ph - 6.8 -7.2 (am- pm)
Kh - 4
Gh -10
Ammonia - 0ppm
Nitrite -0 ppm
Nitrate - 10ppm

I have added a large catappa since seeing it (it’s a super fish scaper 90 with fluval 107 running on it), weekly 30-50% water changes.

I have some Esha 2000 and exit on hand to treat but I’m trying to locate my bumblebee nerites 😑 before I do!

 

[Hufsa]

Anchor worms? Definitely looks like some sort of external parasite, I dont think Esha 200 or Exit will be right for this

 

[The Miniaturist]

I'd agree with @Hufsa, it looks more like anchor worms than fungus.
Interpet make an anti crustacean parasite medication but I wouldn't know how effective it is.