protrusion from under goldfish scale possible injury, any ID?

[Hendre]

good evening guys and gals of mfk, after moving my goldfish from a 80 litre tank outside to temporary 250 indoors i noticed one of my goldfish had a foreign object coming out from under the scales, possibly a parasite?


It may have knocked itself on a brick sitting in the small tank used to keep the filter down when i was netting them up.

any ideas of what this is and how i can treat it. the goldfish can soon be isolated after i build the filter for the big tub outside and move the others there
tank is room temp and are fed pellets and or gel food twice a day

edit : added photos, forgot ;[

 

[Atfownz]

Is there any way you can bump up the temp in the outdoor pond and add aquarium salt? Possibly some prazipro or melafix? poor goldfishie

 

[Hendre]

Is there any way you can bump up the temp in the outdoor pond and add aquarium salt? Possibly some prazipro or melafix? poor goldfishie

They are inside and I dont currently have heaters for the tank

 

[Charney]

I would worry about parasites for sure. Especially anchor worm and leaches. Can you pull it off? Do you have a microscope or pull it and take a close up pic?

 

[pops]

kinda looks like a thorn or splinter. melifix not do much, if a parasite para or polyguard

 

[Hendre]

Whatever the black thing was it fell out and nothing seems to remain.
I am monitoring the fish and am gonna completely redo the tank when I move them out and get tropicals

 

[Hendre]

I would worry about parasites for sure. Especially anchor worm and leaches. Can you pull it off? Do you have a microscope or pull it and take a close up pic?

I do not have a microscope or good camera (phone stolen) but might inspect the fish again If I can get it out from the other 4 yellow ones