Fire shrimp shell semi transparent??

[Colt13]

My fire shrimp usually sits in his cave, but right now he is kind of running up the back glass scurrying around. I dropped food near him but he doesnt want it. His shell is also pretty transparent, i can see his guts/heart. Is he malnourished? he molted maybe 4 days ago so maybe the shell isnt fully hard? ive had him for about a month and he's molted 3 times, is that normal? all my params seem to be in check

 

[Uncle99]

When less than 2”, they can molt quite often, this seems to slow as the reach about 3” which is normally full size.
Make sure you are running 0.03-0.06 iodide, this aids in the molt process.
I never see mine until about 4-7 days after molt, so I am not sure if he’s transparent until hardened.