Shrimp glow up

[Sgooosh]

 

[Sgooosh]

Hello, Here's an update on the hitchiker Neo
It started out as a hitchiker from my bamboo shrimp, a very tiny one. i quicky put it into a bag to not make it get eaten, and i fed it sometimes. it grew and grew and now it's super red!
does anyone know if it's big enough to find gender? i think it's male since it does not have lots of coloring
anyway, i call it Fred for F_ire_RED