Bamboo shrimp really require a river tank to thrive. It needs to be mature (6 months) so that there's enough algae in the water column that they can actually feed. They grow pretty big, my pair are about 3" long, and the male has massive front legs which further add to the length. As with all hillstream/river fish they require high dissolved oxygen levels, decent current (and turnover rate) and low temps. PH ranged I'm not sure about but mine are happy at 7. They're so happy they've even bred before however the babies soon died because they need marine conditions to grow up.
Edit: vampire shrimp are basically the sane as bamboos, they just look way cooler because they have freakin' claw-like-legs
Hope this helped you