Quote Originally Posted by K00l bean View Post
I was thinking about keeping it in 100 as a baby then a custom made one. Also I have all the stuff for the monitor but all i need is to know where to buy the monitor.
Size isn't the only issue with a 100 gallon tank. Humidity and providing the proper depth of substrate are of utmost importance.

Providing a hot enough basking spot, preferably at the top of a Rete's stack is equally important.

While some may claim that an ackie makes a good beginners' monitor, most monitor keepers would tell you that monitors are not good beginner's pets. They do not tolerate husbandry miscues. While ackies may be smaller, they still require a lot of space for their size and a lot of attention to several important husbandry parameters.