Why does this platy look this way?

[The Masked Shadow]

Have you tested your water?

No

If yes, what is your ammonia?

Na

If yes, what is your nitrite?

Na

If yes, what is your nitrate?

Na

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?

51-60%

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.

Why? Is it from bad genes?

 

[The Masked Shadow]

Bump

 

[Milingu]

It looks way too thin. I would guess it either has internal parasites or its old and worn out by too much breeding.

 

[The Masked Shadow]

It looks way too thin. I would guess it either has internal parasites or its old and worn out by too much breeding.

No breeding at all and it shouldn’t be old. But the back is curved which makes me scared….

 

[Deadeye]

Is it eating? Any white stringy poop?
If you have a dewormer I’d give it a shot.