i stop at Tranquil Scapes and saw this, last one they had have never seen them this big for sale the shell is over 2 inch wide big thick bright blue legs, was only $15
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they actually go by blue-knee or blue-knuckle hermits said:Blue Knee hermits (Dardanus guttatus) are a different critter than Electric Blue hermits (Calcinus elegans). Blue Knees get bigger and are not "reef safe" at all.
since Mike had to submit a picture and you'd like proof of an opinion said:Your calling it a Blue-knee yet the pic you posted says Blue-knuckle . Blue-knuckle & Electric Blue may be the same thing but, again, Blue-<u>knee</u> is not the same.