I was going to go fish only. But then I saw some tanks and discovered that some of the creatures I noticed first were things that [met this criteria] right off the bat for me like:
* mushrooms (rhodactis in particular)
Quite literally a whole new world opened up because of these budget friendly, attractive, and hardy creatures. Perhaps basic, but they still are a pleasure to observe.
I decided I would try corals because of them and am so glad I did. Now my eyes are open to other creatures like:
a bounce mushroom, and some spendy butt goni?? Not that I wouldn't love both of those. I think you could get by with the dunkan, however those can be touchy with swings. The torch is a winner but again depending on where you get one they can be spendy. Other than those zoas and maybe the gsp, not sure you can count the rest for this question.