The yellow one is a yellow morph of the Neocaridina. Same species as the red one you have, so they’ll breed if you have one of each gender (yellow looks male and the RCS in pic 2 looks female).
The RCS in pic 2 is a lower grade, so it has the clear mixed with the red. The red in pic 3 kinda has a “racing stripe”, but it’s not contained along the back.
datagovi 
The yellow one is a yellow morph of the Neocaridina. Same species as the red one you have, so they’ll breed if you have one of each gender (yellow looks male and the RCS in pic 2 looks female).
The RCS in pic 2 is a lower grade, so it has the clear mixed with the red. The red in pic 3 kinda has a “racing stripe”, but it’s not contained along the back.