Goldfish with possible disease?

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Dax

Aquarium Advice Newbie
Joined
Jan 9, 2013
Messages
1
Alright so i have this gold fish. Idk his exact species since i saved this guy from a lab experiment in science class a year and a half back. I call him whitey so lets go with that. he also just developed a sore/ulcer at the base of his dorsal fin and it looks like theres a spot of blood trapped inside the clear part of his fin as well. Hes also been somewhat, i guess, moody since this thing showed. Been bullying the other fish in the tank and some days he just sits at the bottom of the tank, other days hes full of energy and doing what fish do. Im afraid this red spot could turn into something serious, or maybe he just hit the bubble rock while speeding around.. Either way i need some advice if anybody has some?
 
It would be best to post this in the "unhealthy fish forum". You might get alot more responses.
 
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