FOWLR Tank Fish Selection
I am new to the hobby and have accrued some equipment from a friend. It is a 20 gallon tall tank and is completely bio. Reason being is I figured it was the easiest introductory way into the hobby. The tank is currently cycling but it is almost done (I hope). I currently have one very small black and white striped damselfish and I am looking to add more.
My question is, once the cycle is up, what kind of fish should I look into? Also maybe snails, crabs, and skrimp. I have a soft spot in my heart for predatory fish (I have been a snook fisherman all my life) and would like to be able to keep a few in my tank. Not Snook, but other fish. And I also am not opposed to non-predatory fish, I find them all fascinating! I am finding myself staring at the tank for hours on end just watching my damsel.
As far as food is concerned, if I went the predatory route, I have an unlimited access to bait skrimp at all times of the year and of all sizes.
What do y'all think?
and thanks ahead of time!
EDIT: It also has about 15-20 pounds of live rock shaped in a arched bridge fashion (If that makes sense). Two big pieces on each side and a bridge like structure arching across. There are holes under the rock and in it for refuge as well.