It doesn't look good from a structural integrity point of view, but silicon is very strong stuff, so you may get away with it indefinitely. Personally, I wouldn't like to take the risk. Regardless, I couldn't live with it aesthetically anyway...
Hi Troy,
Thanks for your answer mate !!
I think I will leave it like this.
Hope I will not found one morning that the office is full of water lol.
I will take a pic right know of the tank and like that you can give you point of view.
Cheers