Not sure how much money you're investing to begin with, but I have another idea. Depending on what you plan to use as hides, you may be better off buying a smaller enclosure to begin with and move up to the larger size. I don't know what your money situation/storage space is like, but it may be a decent idea. I personally like to get the cool looking caves/trees in order to provide a good looking setup, and some of those can be expensive, whereas a 20 gallon tank would likely be more affordable and work with your current options. Good luck with your purchase!