Berghia nudibranch with blue colour meaning?

[sixty_reefer]

Does anyone know why berghia turn blue? Can’t find any info on the web for it and am curious to know.

I know they white wend hungry and develop brown wend well fed. Just wondering what the blue means.

 

[Phycodurus]

ultimately, i think it’s just down to variation in the species after consuming the aiptasia body, zooxanthellae & nematocysts.

 

[sixty_reefer]

ultimately, i think it’s just down to variation in the species after consuming the aiptasia body, zooxanthellae & nematocysts.

that actually makes sense, the anemones that they eat do have some blue in them, thanks

 

[Pistol Peet]

Don't know exactly why I do know that this is exactly how mine look and they were good they took care of my problems