need help on a few things

grimm87

Grimm
Jan 8, 2006
18
0
0
38
Kalamazoo
one of my platys has a white spot on its head and it looks like there are no scales there and it looks a little indented like her skin is rottening away or something. its not a nice thing to look at. doesnt seem to be affecting her yet though. also do some fish become hungry once the lights go out or something cuz i will turn the light off for the night and the next morning one of my fishs tails will be bitten up. maybe corydoras get carnivorous at night lol. any feedback?
 
possible fungal or baterial condition, check water paramiters
 
Definitely need to know what your pH, nitrites, nitrates and ammonia readings are. What is your water change schedule -- how often and how much?

Corydoras are the last fish to suspect of harming another.

I'd more suspect water quality than any of your fish.

Roan
 
AquariaCentral.com