DSwofford

I have a gold fish that has blood under his scales behind his gills. The blood runs from behind his gills to the end of his fins, and his fins are clamped down. All of my other fish appear to be healthy.
125 gallon tank
2 Emperor 4oo's provide filtration
ammonia is 0
nitrite is 0
nitrate is 2.5
pH is 7.5
Temperature is 78F
Tank mates are 3 goldfish, 9 gold dust mollies, 3 sword tails, 1 sword tail fry and 2 guppies.

Any ideas as to what is wrong or how to treat it? From what I have read some say to use "quick cure" and others say to use "maracyn" for the clamped fins, but I haven't found anything that talks about the blood under his scales.

Llama

Blood under his scales? Are you sure there wasn't physical damage to him?

Hmm, mixing goldfish with other fish isn't usually a good idea.

DSwofford

He was fine this morning. All of the gold fish are going in the pond in two days, this is just their temporary home. He has the blood on both sides.
any ideas?

AlyeskaGirl

I am sorry your fish isnt feeling well. I am not sure what is going on but maybe the link below will help you. i came up with Gill Rot but I am not really sure.

http://www.fishyportal.com/diag/

DSwofford

awesome site! Thanks for the help. I have moved him to a hospital tank and I'm monitoring him fairly closely. All I have on hand right now is melafix, if he is alive in the morning I'll go into town and get him some meds. Hopefully he'll pull through.