How much space do 4 full grown tiger Os need

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Raising the O's together gives you a better chance of dwindling down aggression when they mature, but there are no promises. Especially if they pair up, like the others are saying, they will destroy the other two O's. But I had two O's in a 150 and they were fine (note:they were not mated). They actually followed each other around. But I think for four O's you'd want a 180 gl +. Plus lots of filtration.
 
I.bought a used 5x18 120 w 6 oscars all 10-12". I was able.to sell one and am trying to part w the other 5, but they're all healthy and happy. Get along fine. Therr were also a breeding pair of jacks, a ton of convicts.and still is a 12" clown knife. Check out the video I put up.of.them.
 
I personally would not keep 4 full grown oscars in a 100 gal tank but im sure people have kept them in worse conditions than that, I wonder how many pairs of oscars have lived their lives in a 55 gal setup with one hob filter, the LFS's push that setup hard with oscars.


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Honestly I'd vote 200 and up, probably be best off with a 240 and some tank mates. 2 O's should work fine in a 100 gallon; I'd suggest growing then out to about 6" and parting with two of them.
 
Aggression issues aside (all Oscars have different personalities, and you never know how aggressive they will be with each other until you try it), I would say minimum of 180 gallons with really good filtration.
 
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