It should be considered that it will take much time and effort and more importantly money. Tropical aquariums require filters, heaters, lights and pumps, as well as decor, plants and numerous water treatments. However if you have this cash and patiece, there is no reason why you can't have your aquarium up and running within a month. One thing i feel i must add, is that its not always easy, so don't be surprised if things go wrong at first. It took nearly 2 years before I got my main tank set up the way I wanted it, but after many mistakes (and sadly some deaths), I can say that after watching my newly acquired blue discus swimming happily around their new home, its all been well worth it.