yellow cleaner shrimp

[laureniron31]

hi! I have a 94 litre marine fish tank with a mixture of inverts and fish in it, but i have recently noticed my cleaner shrimp changing colour, they have gone a yellow colour i was just wondering what this means and is there anything wrong with my shrimp?

 

[Nu-Nu the eel]

I doubt anything is wrong, im sure he is just molting.