30 lbs at arms length wouldn't be a problem. Although, It looks like he has his right arm most likely resting on his knee since the backend of the fish is further from the camera than the rest of it. It looks so big because the camera is up close to the thing. Perspective messes with your senses.
That gold fish is just a carp in orange color. Don't let the strange color throw all you guys off, carp is one of the most common lake fish on the planet. And now that I see the original pic he has his knee's as support the pic makes more sense as far as the fish he's holding. I don't think it's photoshoped. I'm not 100% about color but the fish is legit. BTW fishing and photoshop are 2 of my hobbies. lol. This is genuine and it's much bigger. Same species.
