Great topic, I live on a third floor apartment and was thinking about starting a 100 gal
. next summer. With live rock, I'm guessing this will be about 1,000+lbs in about a 6x3 area depending on the stand. Weight is defineatly an issue I am concerned about, but I think if one builds a custom stand for the tank and covers as much surface area as possible, it shoulden't be a problem. Kinda like the statement of the water bed and the particle board base. Mentioning this to your landlord might be wise too. Don't forget the renter's insurance, for just in case!