chocolate cichlid and red oscar compatability

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jumpin joe fish

Feeder Fish
MFK Member
Sep 20, 2007
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Illinois
have 6' 125G w 8" chocolate cichlid and 2 small FM's, tetra and large pleco w school of black skirt tetras. i added a juvie red oscar to the mix/ will this be a problem later for the chocolate? I realize i may lose some tetras wen red oscar grows out. It was and is a very peaceful set up but was curious if this will probably change as oscar grows out
 
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Oscars are not really that agressive, but are territorial IME. They usually dont chase fish and nib them but they like having their space.

That being said, you will most likely lose all of your tetras.
 
6 months time if you feed your Oscar right you wont have any tetras left. Oscars are advised to be kept with larger fish that wont fit in its mouth. The aren't aggressive as such just like Grunt says they do like their space and can be tempremental at times when you mess with their tank. He should be OK with the chocolate imho.
 
If your oscar is growing up with the tetras, it may never bother them. Mine spent his whole life with little tiger barbs, and mourned when they died. The oscar and the chocolate should get along great.
 
I think your oscar and your chocolate cichlid will be fine together. Oscars are pretty mild, except with other oscars (unless they are a pair, of course).

-Rich
 
oscars and chocolates are very much on the same level when it comes to aggression, so generally speaking pretty good tankmates. Both should be pretty peaceful barring the occasional aggresive specimen
 
Hardcore necro, my apologies but I figure most folks won't be active and those who are might like a continuation. I just went to a local pet store two days ago to get emergency mice for a snake and I saw a 10" oscar sitting in a 10g tank, looking super miserable with 2x dead danios in front of em, apparently the store staff thought they would be good meal choices. He was sitting on the bottom, struggling, you could tell he had a day or two with these folks before he was done. Labeled as "Charlie" the 3 year old surrender, a couple brought him in and said with covid they couldn't care for the fish. Texted my wife, she said "no" immediately, sent her a picture and she called. 10 minutes later I have an oscar named Charlie in a bucket.
Relation to this post and excuse for my necro: I added Charlie into my established tank and initially my ~3 year old chocolate didn't pay him any mind at all but within a half hour he was on him. The chocolate has spent roughly 36 hours trying to engage with the oscar who just retreats, at one point the chocolate was trying to lock lips and the oscar literally turned tail and ran. I've rearranged the tank and it's 150g. All I've got in here other than these guys are a handful of cory cats, a few rainbows, a small female convict and a banded leporinus. If anyone of you guys or gals are still around, do you think it'll subside? I've never introduced another adult fish, I've always grown out my own. chocolate and charlie.jpg
(Rocks are a demarcation line, switches to gravel/sand then back to sand on the far side where I've got tunnels plenty large enough for both and unobstructed but they hang out with the fake plants or rip up my real ones)
 
I have a 6” tiger Oscar and a 5” chocolate in a 125 right now with a JD and a pleco. Oscar and chocolate get along very well.

As others have said, both are very similar in size and aggression level. Generally a safe gamble.
 
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