I cannot be sure from the photos, the Tetras are so washed out, I am afraid to draw conclusions, but they do not look like Bamboo Shrimp (I know them as Wood Shrimp), Atyopsis moluccensis. A photo even a poor one of them feeding will tell.
Atyopsis moluccensis has a thick white stripe down the spine (FishProfiles.com has an extreme example) with thin red horizontal lines running down the body, the base color can vary quite a bit, usually tan, brown, reddish or even almost green.
The four fans it uses to feed is the most striking feature, Planet Inverts has a nice picture. Atyopsis moluccensis stands up in fast moving water and uses the fans to filter the water.
They grow to 10 or 12 centimeters, molting once a month or so. They are really quite an addition to a mature planted aquarium; the only downside is they do not breed.
The first sign we don't know what we are doing is an obsession with numbers. - Johann Wolfgang von Goethe
Disclaimer: I am not trying to make you mad, it is just what I am, an evil plant monster, 'nuf said.
- I believe the information I am giving is sound, I am not a veterinarian, professional chemist or particularly bright and certainly not a "Guru.".
- I assume you are of legal age, competent and it is legal for you to acquire, possess and use any materials or perform any action in your in your jurisdiction.
- When in doubt "don't."