OK without rim (24 x 18 x 16)?

[shrimpchips]

I picked up a used 30g tank (24 L x 18 W x 16 H), all the glass panels are 1/4" thick. It used to be part of a store system apparently, and will be used as my sump.

I'm going to strip it and re-silicone it. My question is can I leave the trims off it? The top trim is two pieces of black trim that were easily removed, and I don't think they really provide structural support. So when I put it bact together, can I leave it off? (Again, glass is 1/4" thick, tank size is 24 L x 18 W x 16H).

Thanks