I just got a betta fish about a week ago, he seemed to be fine and active. Now all he seems to do is sleep or go to the bottom. He still eats the flakes and bloodworms I feed him. I have also just noticed some fuzzy white/grey stuff on his face. Is he sick? I tried to look up what he could possibly have and I feel its either ick or Velvet. please help me so I can treat him as soon as possible. thanks!