Quote:
Originally Posted by neilfishguy
Why not oscars? They only need 55 gallons...there are many many more fish that grow to large...
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Most people haven't seen a 16 inch oscar, I'm guessing! They get MUCH bigger than most folks have laid eyes on. I've seen many breeder size fish that couldn't easily turn around in a 55 (12 inch wide tank).
One oscar can live some two years in a 55, but it will get hole in the head, bacterial infections, lateral line disease, or worse without huge regular water changes. They might can live in a tank that size, but they "need" much, much larger.
Edit, just re-read and apologies if that came off rude. I just feel certain that single full-grown oscar needs a 90-125 gallon tank, minimum.