df puffer turned blak

[st3]

my df puffer turned blak when i turned on the light to see him but then changed back after a few mins. what the hell is goin on? is he sick?

 

[demodan]

Puffers getting dark and curling their tails is a sign of stress. How long have you had him? Is water quality ok? Mine was dark for the first month I had him, but he came around. Is he eating?

 

[st3]

had em for about 2 weeks. no hes not really eating. he eats anenomes and snails though

 

[guppie]

I have had a df for 2 years and he has done that every night when the lights go off and he finds the place he is going to spend the night at. I would not worry. Good Luck