You're also going to have a tank on a glass table. If you ever do any work on the tank and drop anything at all that will break the glass you will have an instant problem. It hard enough as it is to make sure nothing breaks the tank, why make it more difficult and have to focus on not breaking the stand as well. If you are dead set on that look then maybe swap the glass out with some thick acrylic (although I have no clue as to the strength / pressure / load. I just know it doesn't crack as easy. As other said you also need to make sure that the table itself can handle that weight.