Jeez
I wouldn't even want to think about my big tank leaking.
Can you see where it's coming from. You might be able to resilicone that area.
The down side would be to drain it and return for warranty. BTW - don't strap the tank down when you are transporting it. This will put a lot of pressure in one specific spot on the aquarium and they are not designed for that. This may be why it's leaking. Pad the sides so it wont slide and have a very level base under it. Then drive carefully.