I think there is a tank out there for everyone. I would assume if you are military then you would want something that you and a friend could carry. I would say a standard 90 gallon is about as big as you want to go. That is unless you and your friend are really stong!!

Like aggie said....Red Sea makes a great plug-n-play tank. But a lot of people like to tinker and that doens't really allow it.

If you want to do a high end reef...I personally would go with a 75 gallon reef-ready. You will have room to play in the space below the tank, and you have lots of room for your reef.

If you want to do a Fish Only tank...you can save some money and not get a reef-ready tank and use the canister filter or Hang-on instead.

So what kinda contents do you want in your tank?