for what it's worth, I kept Caridina Simoni Simoni in a ~2 liter bowl for four months during the summer and it survived and grew. However, when I returned it to a tank its colours greatly improved. Since I kept this female singly I do not know if she would have bred in the bowl. An interesting side note is that this bowl reached 34C on at least 2 occassions without any problems with the shrimp. Though my freshwater nerites in it died.