Why is my armatus turning green?

  • We are currently upgrading MFK. thanks! -neo
I have 3 housed together ranging in size from 11-13". 2 have minimal yellow/green but the 3rd has much more. I also notice that it has a slightly different shape, seems taller but not as elongated. Wouldnt even notice except I have the other two I can directly compare to.

IMAG0836.jpg
 
Here sorry forgot to attach:/ he has a green tinge on him. More visible in person tho
That's typical at such size. It's gold to someone, green to others
 
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