Zhen zhu fading off

[Carpintis Keeper]

i have 2 m and 1 f Zhen zhu imo and yesterday when fans were off and the aquarium lights were off all my Zhen zhu went to fading mode and they are not of fading strain,their red eyes were now grey and i added some ice to regulate the temp. but nothing happened,it all happened when my aquarium lights were switched off and now will they regain their colour and in how much time.
Thanks a lot

 

[hybridcichlids]

All my fish I had from fh ,jags,festaes, fade I guess that's what they do its ok

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