Welcome bro..
Actually you don't really need to know everything to get started into this hobby. You can google and read some basic stuff like tank cycling and how to get it done then you are likely can get started with setup a new tank.
But before start buying stuff, be prepared of what is your expectation like what kind scape you are going into, then google on how other people doing it and you can just simply clone it for learning purpose.
There are many books out there for you to read, but none of them give you the best information than doing practical. As you kick start with a new tank, you will need custom pick the relevant subject along the learning path.
On the other hand, you may want to visit our bro UA blog as the starting point for aqauscaping. Many of us started from there.
http://www.urbanaquaria.com
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