Originally Posted by fadetoblack06
Picked up this little guy at the store and was wondering if you could help me out and let me know what it is.
Having bred and raised over 100,000+ oscars, I can say without fear of contradiction that this is a baby oscar. That being said, I have to ask... How could you buy a fish for your tank that you don't even know what it is? There is no upside to doing this and the downsides (multiple) could be disasterous! This sounds like a failure of both the hobbyist and the store you purchased the fish from.
#1 Arawanas eat small fish. If this fish was small enough to fit in the Aro's mouth, he should never have been purchased for the same tank.
#2 Oscars can grow quite large (my largest was 22") and become very territorial as they get bigger.
#3 While I disagree with the poster who said that Oscars are the meanest of the cichlids, I agree with the poster about their cleanliness. They're not at all clean. Not a good combination for an Arowana.
People: do a little research before adding any fish you know nothing about before you buy it. If it means making a second trip to the store, that's better than killing a new fish or throwing your existing tank out of whack. There is very little out there that is not available on a regular basis. If you miss this one, you'll get another chance another time.
(This is timeless advice from a very experienced tropical fish hobbyist! )