My homebred black rose neocaridina shrimp
 
My personal favourite color neo and very hard to achieve
 
My neos live in water that is kept at these parameters:
 
TEMP - 80F
PH - 7.0
TDS/TOTAL DISSOLVED SOLIDS - 200-300 PPM
GH/GENERAL HARDNESS - APPROX 6dGH
KH/ALKALINITY - APPROX 10dKH