Low iron glass vs starfire???

[maron6977]

Hi , look'in to upgrade from my 4' 120g. After many options: new , used , what size - 6' 180g , 220g !!! Think I'm gonna pull the trigger on a Concept custom tank .
I figured I'd get exactly what I'm after - 215g 72"x30"x24"H .
Now back to the question .
I would like input : apparently they have Chinese low iron glass & Starfire glass .
I've heard the Starfire scratches somewhat easier. Good results from the low iron glass & not much more than reg glass.
Please set me straight if I'm mistaken & anyone have any experience with either, please let me know .
Thanks Mark