Average Length Of A Tiger Oscar

Avalon

Superstar Fish
Oct 22, 2002
2,846
10
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Ft. Worth, TX
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#2
I would say that they can get up to 12" or so, with females being a little smaller, about an inch or two. It depends on how long you intend to keep them. Average for most would be 5-8" male or female, but they easily grow past this size, that is if you pamper them and keep them very healthy. I've seen some very large adults that get traded in to a LFS here. I have also seen oscars pushing 15", but they are rare.
 

Jun 15, 2004
27
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0
Ireland
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#3
Expect your oscar to reach 7"-9" in the first
year and then max out at between 11"-13"
there isn't any difference in size between males
and females, in fact you won't be able to tell
them apart unless you have a breeding pair.