there is no reason to add a cross brace.
just reseal the silicone and away you go.
older tanks were not designed to require one (hence the thicker glass) and were actually better built than the newer tanks with the thinner glass IMO.
my 90 did not have a center brace and it lasted 17 years before I sold it...
no doubt it is still holding up just fine..
congrats and your Dad is lucky to have a child like you!
just reseal the silicone and away you go.
older tanks were not designed to require one (hence the thicker glass) and were actually better built than the newer tanks with the thinner glass IMO.
my 90 did not have a center brace and it lasted 17 years before I sold it...
no doubt it is still holding up just fine..
congrats and your Dad is lucky to have a child like you!

