Last August, there was a 2-week period in which I transitioned from my old apartment to my new one. I had to move all my tanks to my parents' (2.5 hours away!) since the construction of my new building wasn't completed yet. When I moved back, I left a few tanks, along with a 20L CBS. This past weekend, I visited my parents; the CBS population has grown well and I may be reaching the "high-density tank" level - though I anticipate selling/donating some shrimp.
Among the CBS was a "Super" Crystal Red Shrimp, though this one may be a low grade Super CRS, or simply just a super low grade CRS. Common names aside, it is simply a CRS that has a wider red coverage and minimal white.
Here's a video of it making its way to the food:
And a video of the CBS feeding:
(sorry for the poor quality, videos were taken with my phone)