Wow, thanks everybody. Reckles, thanks for the warm welcome-back!
The intention for this tank is to raise softwater shrimp. I'm going to start with tigers or bees, depending on what presents itself at the right time. But there's a huge part of me that keeps saying "come on, you know you don't want to have a tank without fish in it, you know you want to put fish in there" and so on. But the only way I will do it is if I can guarantee that the shrimp population will not shrink as a result.
A lot of votes for the boraras, I like it!