fish-aholic
Fish Crazy
Yes those do look like B's.
Have they changed color at all? If so they could be ninjas.
I've managed to get a better picture of my mystery shrimp. You can see the yellow markings a bit better on this one. The yellow bits at the bottom of the back section follow the edge of the body (I need to find out what these bits are called so i sound less of an idiot!). It also has the yellow marking on its legs and the front part of its body but they are more like lots of small dots than the lines on the back sections.
Its standing next to a CRS to give an idea of scale as well! Its like they know I wanted this picture
One theory I have is they may be rainbow shrimp as the 3 bigger shrimp are all slightly different colours now. Unfortunatly i think rainbow shrimp is a common name for a few species.