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My fish has a big lump under the skin down by his tail. It ...
Sent to Pet Experts November 13 04:44 PM

My fish has a big lump under the skin down by his tail. It gets a little reddish and white cottony stuff comes out sometimes. He also two smaller ones near it. I have treated it with erythomycin (ms?) and it's gotten a little better but won't go away. What's next? I have a picture if you need to see it.

 

Optional Information:
Age: 3; Breed: goldfish

Already Tried:
melafix and erythromycin and anitbacterial food

Customer (name blocked for privacy)
Status:  Closed   Value: $9
Answer
November 13 5:57 PM (1 hour and 12 minutes and 35 seconds later)
         
ACCEPTEDCheck Mark
Hi Customer (name blocked for privacy).

What kind of fish are you writing about?

And yes, please send me a picture as that would help me see what's going on.
Thanks.
PictureTROPICAL FISH AFICIONADO -- YOUR TROPICAL FISH RESOURCE -- 99% Positive Feedback on 564 Pet Accepts
OVER 20 YEARS EXPERIENCE W/TROPICAL FISH---BREEDING, MAINTAINING, CURING
Reply
November 14 8:17 AM (14 hours and 19 minutes and 55 seconds later)
         
Reply to TROPICAL FISH AFICIANADO's Post: Oops, sorry...it's a fantail goldfish. I'm not sure how to upload a picture to you. I just dragged it over to the box. I noticed last night that the lumps were a bit smaller. I did a 25% water change. Should I give him another round of the erythromycin? Will it hurt him?

/Users/lhickman/Desktop/Linda Files/Linda/Pets/PB062966.JPG
Customer (name blocked for privacy)
Answer
November 14 10:29 AM (2 hours and 12 minutes and 3 seconds later)
         
ACCEPTEDCheck Mark
Hi again. If the erythromycin is working by all means continue using it. Just make sure to take out any filter media you have that has carbon as the carbon will filter out the medicine. I would keep giving him the erythromycin for 3-4 after the symptoms have disappeared to make sure whatever is causing the problem is truly eradicated. Note that erythromycin is an antibiotic and if any of the bacteria stay alive after treatment is finished they will come back stronger and more resistant to medication as is the case with humans and antibiotics. Also I would keep changing 25% of the water every 3 days so as not to get a toxic build-up of the medicine
as without the water changes and any carbon filtration the antibiotic would accumulate in the water to a very high level possibly overdosing the fish. I'm glad things are progressing well and keep up the treatment until complete eradication is completed. Please let me know if you need further assistance.
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PictureTROPICAL FISH AFICIONADO -- YOUR TROPICAL FISH RESOURCE -- 99% Positive Feedback on 564 Pet Accepts
OVER 20 YEARS EXPERIENCE W/TROPICAL FISH---BREEDING, MAINTAINING, CURING
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