Physical wounds on Oscar?

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Fengoat created the topic: Physical wounds on Oscar?

Hi guys, I have an oscar cichlid that I woke up to find dinged up. I don't know if the damage is self inflicted or a prior illness, but I'm hoping a more discerning eye can help me here.

imgur.com/a/JZDSF

He's groggy in the morning but otherwise swims just fine later in the day.

Tank parameters, as you can see above, are pristine ( <5.0 nitrates ppm, no ammonia, no nitrite, ph 7.0)

This is a 75 gallon planted tank with a very large driftwood centerpiece. It's been established for a little over six months.

Filtration is handled by two eheim 2215 canisters.

As of current, there are six fish in the tank:

1 juvenile Oscar Cichlid (5 inches)
4 juvenile striped raphael catfish (none greater than 4 inches)
1 juvenile Rhino Pleco (3.5 inches)

There has not been any recent change in the past two months. The latest was the rhino plec I got mid June.

Is it possible that any of the catfish are attacking my oscar? He's particularly passive towards any other fish in the tank. They've gently rubbed against him, but nothing aggressive.
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Rocksor replied the topic: Physical wounds on Oscar?

It looks like the oscar was attacked due to the raised scales versus gashes that would occur during scraping . Since catfish and the pleco are nocturnal, they will show more aggressiveness at night.
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Fengoat replied the topic: Physical wounds on Oscar?

Aren't Raphs supposed to be docile? And everything I've read on rhinos indicated they also don't care for other fish unless it's another pleco.

Rex has NEVER been aggressive in the time I've had him. He's actually fairly passive, doesn't mess with my plants, doesn't break anything. He's a very calm fish.
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Rocksor replied the topic: Physical wounds on Oscar?

Have you watched the fish at night from 11pm-6am?
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Fengoat replied the topic: Physical wounds on Oscar?

By that point, Rex is winding down. As is his usual ritual, he lingers near the surface of the tank on one side and falls asleep judging from his lack of movements.

At night, I'll occasionally hear a wild splash. But a feather could break the surface tension of the water and he can bolt to the other side of the tank.
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