Here is one of the "contaminant" species that showed up with my Cardinal Shrimp from Sulawesi. They stay at the back of the tank if I come for a photo so the quality is not very good
Similar in color to Malawa Shrimp a very nice pale blue. These shrimp have a habit of slowly swimming about the tank and very slowly almost hovering sometimes. I have 3 of these I think.
Cheers, Bill