Are they housed together?

Blue tongues should not be housed together. They can seriously injure each other and quickly, if one or the other decides having the other around is disagreeable. Could be why your female is hiding all the time and not eating.

Also, what temperature is the basking/warm end? IF its' not high enough, that would explain why they are not active and eating. Basking area should be around 100F.

The diet is way to high in protein, need to give them much more greens and vegetables, especially as adults.
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PHLdyPayne