Miles69 wrote:
Is there any way to tell an Oscars age?
I have a re-homed red, who is about 8-9 inches. Is ther anyway I can tell if it is full grown or still growing?
I know that 8-9 inches should represent maybe a year, but it could be full grown, but raised in a bad environment?
looking at the picture, your oscar is a young 10 month old fella. older oscar though
having same size will show contour at the head before the fin but young muscular
o will not. (tips from the breeders

) the smooth shoulder
means your oscar is a healthy young fully grown but not yet adult...expect it to
grow more provided you can maintain good water and varied feedings.
full grown adult will sport a contour on the head like this: