To my knowledge, shrimp can't tolerate a high concentration of Co2. If you did add any fish, they would have to be small, non aggressive fish. Small fish don't tend to produce a whole lot of waste, and as such, you might want to invest in some low maintenance plants. Most plants will grow without added Co2. With the right substrate, you won't even have to dose for many months. I've used Eco-Complete in my ten gallon, and Flourite (sand as well as large red granules) for my other planted tanks. I do dose Flourish excel, which is a liquid carbon supplement, twice a week, just to help fight back some algae. Again though, I've been cautioned against doing so with shrimpies. Possibly the two best low maintenance plants on the market are various Anubias, as well as Java Fern. If you are looking for a carpeting effect, I'd personally do dwarf Sagittarria, despite it being a relatively slow grower, it will fill in very nicely.
Many Tetra will eat shrimp of just about any size. In my experience, and others that I've asked about the topic, Celestial Pearl Danios, or Galaxy Rasboras (common names) tend to do the best with Cherry shrimp. Though recently I have heard of them occasionally eating the shrimp fry.
You shouldn't just add the shrimp to the tank, as shrimp tend to be quite sensitive. Let the tank cycle for a bit longer than you normally would, and check your parameters about twice a week during the set-up stage, just to make sure that everything is stable. Honestly, I'd give it about a month with plants in it prior to adding shrimp.
Hope this helped, and GL
