Please help me understand what this is on my Goldfish

[Merw]

Have you tested your water?

Yes

If yes, what is your ammonia?

0

If yes, what is your nitrite?

.75ppm

If I did not test my water...

1. ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.

Do you do water changes?

Yes

What percentage of water do you change?

31-40%

How frequently do you change your water?

Every week

If I do not change my water...

1. ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.

I've just noticed something that looks like an injury on my little goldfish. He is an intelligent little guy and i want to help .. could you guys please help me understand whats wrong ?

 

[tlindsey]

I've just noticed something that looks like an injury on my little goldfish. He is an intelligent little guy and i want to help .. could you guys please help me understand whats wrong ?

View attachment 1504014

View attachment 1504015

Welcome aboard
Not too sure but maybe it scraped itself on something in the aquarium..
Keep water clean and should heal if it's a scratch.

 

[phreeflow]

Hard to tell. Could also be from an anchor worm. Keep an eye on it and add some salt just in case

 

[Merw]

Welcome aboard
Not too sure but maybe it scraped itself on something in the aquarium..
Keep water clean and should heal if it's a scratch.

Thank you. Ill get the sharp stones removed..

 

[Merw]

Hard to tell. Could also be from an anchor worm. Keep an eye on it and add some salt just in case

Oh God I sure hope not.

 

[duanes]

Here is anchor worm, (Lernaea) to compare.


a 3 ppt salinity will kill Lernaea larvae, but not adults.
I remove adults with tweezer.

 

[Merw]

Thank you everyone for your guidance. Apparently it was just an injury so I took off the bully fishes and the sharp stones. In 2 days the fish was bad to normal ... He thanks you ...