How thick should the glass be??

[20reefer]

Hi, my tank will not be that big but is not a nano so here is my question, I will build a tank 60x14x14 so how tick should be the glass?? 1/4, 3/8 or 1/2??

Thanks, Pablo

 

[gsoaxionsk8]

do you plan to have any bracing or rimless, this will make a big difference.