I have been out of the hobbies for 20 plus years and just got back in to it... I purchased a used setup off marketplace. 125 tank, wet dry and stand for dirt cheap.. originally it was salt but converted to fresh and the lady had other smaller tanks in her house and was tired of maintaining.. I arrived when she was draining the tank and I helped but after loading the tank I noticed the top.brace had been removed but she told me the tank had been set up for over 5 years but my paranoia is getting the best of me.. I either going to purchase a new rim ( The glass span is 72 1/4 x 18 3/8 due to the 1/2 glass) or brace it with aluminum angle stock... my big question is ... should I worry about this tank or am I just being paranoid? I read that 1/2 glass didn't need a brace even though they have one... somebody else my worries please