Urgently seek for silicone

Hi all,
I urgently seek for good silicone glue for regluing 4ft centre bracing as current bracing came off.

I'd tried used the silicone glue (heavy duty mean for construction but the glue seem to be stretched when tank is full with water.

Currently had drained 70% of water and wanted to resilicone back.

Any recommendation for liable Brand of silicone ?

Thanks in advance.

[armageddon]

for aquarium u have to be careful in the type of silicone used.

also for the silicone to fully set and safe for aquarium usage u need abt 1 week.

go DIY shop can get. make sure before u slicone it, its cleaned dry and free of dust for the silicone to work. after applying, use something to hold it first. after 1 week it will be fine.

Thanks Bro.
previously I use the normal silicone for glass bought @ DIY store for $5 per tube.
As I'm gluing the top center bracing and will not has a close contact with water, I presumed it is safe.
I'd done the cleaning before gluing and waited for 4 days before fill the aquarium with water.
Next day upon checking, I saw the silicone stretched as the front glass (6mm) slightly bowed outward.

I think I'm too soon filling up the tank.
Thanks for the input.