keeping other fish with oscar

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scotth42

Feeder Fish
MFK Member
Aug 31, 2008
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i was wondering i have a 125g tank with a 9in oscar and a 4in red devil i would like to add a jag and maybe a gt but my oscar kills everything i try to add the other fish where small so that's my fault but i have a nice jag about 4in i'm gonna grow him a bit. but what would be the best way to add him should i remove the oscar and add them both at the same time or will they still fight.i might have to get rid of my o if i can't keep him with anything
 
usualy with oscars you are ment to put everything in the tank before you add the oscar then add the oscar then te other fish in the tank will look normal to the oscar because they were there b4 him but if you add fish to a tank after the oscar they will resemble food instead ov tankmates.
 
if you rearrange the tank a bit, even a 4" jag will put up with an oscar np usually.
 
I've got a pair of oscars and a pair of firemouth's They're all relatively small now, the O's at maybe 4" and the Firemouth's at about 3" I actually added the firemouth's after the O's, gave them some hiding space and have had no problems whatsoever.

I actually see more agression from the firemouths then the O's, i definitely expected it to be the other way around. They've all kind of staked out spots in the tank and seem very happy. Some gill flaring here and there, and a little chasing, but nothing too bad.
 
ShipOfFools37;2526242; said:
I've got a pair of oscars and a pair of firemouth's They're all relatively small now, the O's at maybe 4" and the Firemouth's at about 3" I actually added the firemouth's after the O's, gave them some hiding space and have had no problems whatsoever.

I actually see more agression from the firemouths then the O's, i definitely expected it to be the other way around. They've all kind of staked out spots in the tank and seem very happy. Some gill flaring here and there, and a little chasing, but nothing too bad.

The thing is there is a lot of difference between a 4" and a 9" oscar, mine were puppies when they were 4". The bigger they got, the more they tried to dominate each other, sexual maturity i think.
 
I have 2 Oscars that have been with a wide variety of tankmates in the 5+ years I've had them...

I've added many medium growing Cichlids in tanks with adult Oscars and the Oscars didn't do them any harm... and I've added young Cichlids that had the potential to become large aggressive Cichlids and the Oscars tore them up...

It seems to me when an Oscar meets a new fish, the Oscar can tell that some fish are going to be a threat to them in the future, if that fish survives... So the Oscar doesn't let it survive...

At least that's my theory...
 
if you want tankmates for oscars, I'd stay away from those midas and jags for the most part...go instead with SA cichlids like chocolates, severums, and large geos and acaras
 
hers a pic of my little jag look at the blue around the gills looks pretty cool also does he look thin he will only eat flakes and shrimp and bloodworms so far but no pellets to me he looks skinny.what you think

121208_15171.jpg
 
I think that you are going to have a very pretty Jag beat the snot out of your previously pretty Oscar (it won't be pretty after the fight, lol)
 
yeah i'm gonna sell my piranha's to free up another tank gonna put him in a 65g til he gets bigger then try to put him in my 125 g with oscar and red devil i doubt thats gonna work though. i really like his color lots of blue in the fins and gills i never saw that before. he seems really skinny and don't eat nothing but flakes i put a few roseys in there to see what he would do and nothing he chases them but that's it
 
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