yes you're going to want to cycle the bowl if you have the time. in the unlikely event that you are out of time and have no place to put shrimp into but the bowl, then just start out with massive amount of fast growing plants and give it plenty of light. you will hopefully soft-cycle the bowl (or at least avoid the harmful effects of a cycle as the plants use up the harmful compounds)...but this is certainly not guaranteed.
i think only lower grade CRS are suitable, and that's only if you can keep the temperature stable between winter and summer (summer will be the biggest issue).
I have kept CRS in my bowl before.