Sorry Bad, I been so darned busy I have been outta touch with the local world. I can certainly answer most of these questions above.
To start of I began raising dwarf shrimp to feed to my fish. The rest as they say, is history. I have several species/varieties.
To the comment made regarding keeping the yellow shrimp with tetras... NEARLY ALL fish DO NOT make good tank mates with dwarf shrimp. It is certainly doable in some instances but n general most fish find shrimp irresistibly tasty. Most of the time large adult dwarf shrimp can survive and sometimes even breed but the babies nearly always get eaten and often even adult shrimp get harassed to the point that they become stressed, ill and die. A VERY densely planted tank is an exception to this rule. Tetras are voracious predators btw.