This lovely peal goldfish is very very cute and very very timid withtender temperament. She never chases other fish and is always swimming happily and peacefully. But she was bitten by another aggressive fish who is very very mean all the time. And I seperated the aggressive one immediately after finding the attack. But today I find the wound has worsened so fast and there's a big patch of blood at one wound.What shall I do? Are there any medication for stopping the blooding and heal the wound? I'm worrying to death....Somebody please help me........