I don't think it'd be too deep, I know there are parts of the Ohio river that are over 60' deep, so I'm sure there are parts of the amazon that are deeper than that.
Don't ask me why, but the simplicity of this tank is beautiful to me.
This is pretty hot.
Japes aquariums are stunning as well. There's someone, either on here or another forum, not sure, he has two columbian sharks in a very simple aquarium, I love the photos he takes, it is beautiful.
Japes 75g eartheater tank looked real nice...the 60" length made the tank look great, too bad the only 75gs I can get my hands on are standard 48" ones
The saltwater one posted by xredbeardx looked nice too but im not a sw guy