I definatly agree that an eyeball measurement is pretty pointless. I too have definatly miss judged sizes of fish before, but the measurement of the Argentea from a full year ago where it has definatly put on size, puts the saum in perspective.
From the photo you can see that the saum isn't stretched out from a side angle, and is deeper in the tank than the argentea, but still appears longer.
I know i definatly opened the door for a lot of critisism which im fine with, and its not like im aiming to get this fish in the world record book, i have just never seen any GT thats of this size before, and i have seen ALOT both in real life, and searched a whole bunch on the web.
He's definatly agressive, but not out to kill anyone, just asserting his dominance it seems.
water is still as green, and i really dont want his wounds to get any infections, so ill let the general tonic and salt treatment work before i do a waterchange.
But as soon as the tank is clear, a vid will be posted, or pics.