What is wrong with my Oscar?

[jshep105]

Hello I bought two baby oscars about two or three months ago at petsmart. I feed them 2 to 3 times a day and do 50% water changes every week. When I woke up to I noticed these marks on one of my oscars that looked to be scratches. They were not there before.

Here is the Oscar with the marks:


And here is the other Oscar:


So my question is, what are these marks? Should I be worried? How do I cure them?


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[Carefree_Dude]

If I had to guess, there was aggression between the two, and they scratched themselves on your rocks when running away.

 

[jshep105]

If I had to guess, there was aggression between the two, and they scratched themselves on your rocks when running away.

That's what I was thinking but I didn't know how to prevent this from happening in the future. And I was just making sure it was a disease or anything like that.


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[Cichlaholics Anonymous]

best way to prevent it is to remove the aggressor.

 

[smokeythebair]

what size tank?

 

[jshep105]

best way to prevent it is to remove the aggressor.

I would do that but as on now I only have a 30 gallon filled with community fish and a 55 gallon tank which is where the oscars are living for now. So I do not have any other tanks to put one of them in.


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[jshep105]

what size tank?

Right now they are in a 55 gallon tank.


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[SickSauce]

Time to upgrade to 100g+ or separate fish before they damage fins or kill each other. Maybe a tank separator for temporary fix