I've had a 2'x2'x4' glass reef tank with euro brace top and low iron glass for over 15 years, and want to go to a 6' long tank. I will use wood trim on the top and bottom of tank and am now wondering why I wouldn't save money and go with the plastic braced tank. I also don't know that low iron glass has significant advantages with the newer led lights. Any drawbacks that i'm not seeing with this approach?