Hello. So I have 2 4x2x2 tanks left to setup up, they use plastic clip on braces which I really like issue is I was not given the right amount so I am 2 short! One of the 4x2x2 has half a brace I guess, it runs around the inside of the tank making a square box but has no center brace going across, do you think its safe to run this without the center brace? or should I just wait and buy some glass to make a center brace? they are starfire glass 10mm thick not sure if this makes any difference?