oscar aggression

[thechief]

hey guys i got an oscar recently and he is pretty aggressive towards my flagtail and one of my pagausius catfish he doesnt chase anyone else except those two the catfish id gunna be going back to my friends tank since i was just holding on to it for a while but my question is will he ever stop messing with the flagtail and when the catfish goes will he target someone else in my tank? he hasnt even thought about messing with the arowana he seems scared of him whenever the arowana gets near him he swims away and him and my jaguar get along pretty well its just the flagtail and cat so any advice is appreciated here guys! thanks! heres a picture of the little guy! and some pictures of the fish he is messing with for size comparison sorry about the crappy pictures i can get more pictures upon request thanks guys

BTW both the fish he is messing with are missing eyes idk if its because he sees them as weak or something i dont know just an idea let me know guys thanks and lmk what you think of the oscar i like his coloration haha thanks

 

[Megabass]

This might stop once he has established himself dominant,or he may beat on this fish until they are so stressed they hide and dont eat,or he kills them,depending on your tank size,you can "overstock" a little to spread the aggresion or just pull him or the others out,i would run lower temp so as to make him less active,provide hiding places for the others,And monitor the tank


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[thechief]

This might stop once he has established himself dominant,or he may beat on this fish until they are so stressed they hide and dont eat,or he kills them,depending on your tank size,you can "overstock" a little to spread the aggresion or just pull him or the others out,i would run lower temp so as to make him less active,provide hiding places for the others,And monitor the tank


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Yeah I'm gunna wait until the other catfish goes and see what happens I have a lot of caves and hiding spots he only usually attacks them when they come on the left side of the tank maybe they will eventually learn that is his side but if it keeps on going I'm going to take him out I really hope it works out I really like him but I can't have him attacking my other fish the tank is a 150 and the temp is at 82 I'm gunna be getting a 300 in a few months

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[DMD123]

Nice looking little Oscar.

I have a similar issue, but my Oscar goes after red hook silver dollars that are 3x his size. So far he has no issues with my flagtail or the other slightly larger Oscar. This is in a 210g. The two Oscars have completely different personalities. You might just need to try out a different fish if he does not mellow out and you are set on a community.

 

[Megabass]

Yes id agree,they can be easy going,or down right mean


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[thechief]

Well ill give it a few day and if he is still like that ill take him back and get another Oscar but one that looks a little more mellow and not mean thanks guys ill keep you all posted on what happens with him

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[oscar fish lover2000]

OMG! that looks EXACTLY like mine!

 

[thechief]

OMG! that looks EXACTLY like mine!

is it the one in your avatar? he does look like it ahah bad news guys the oscar has ick i moved him into my 40 and moved the other fish out into another tank so he can have it to himself for today and im going to take him back tomorrow i hate to get rid of him but he is just too aggressive im doing a very large water change in my 150 non of my other fish have ick right now i hope it stays that way im gunna clean all the decorations also man i hope he doesnt give my other fish ick the guy at the store would not let me see him before he bagged it so yeah and he just started coming out more to where i could see him so ill be back tho im planning on getting another one and choosing a calm less aggressive one and hope that works out if not then i guess i wont have an oscar thanks everyone for the help ill let you know how it goes