A 1000 gallon tank is going to require a very sturdy floor and is going to be A-LOT OF WORK! As stated you need to research what type of fish you want and how you can daily care for them. With a tank this size.......it would be a beautiful salt water environment for all kinds of creatures and not just limited to fish. However, your filtration system is going to be critical as well as the water temp. What is the size of this? I definately would look into the time/cost factor and how much of these you can invest.
