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Fantail with lump on rear right


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  • Regular Member

Hello.

This fish has been living in my koi pond for 2+ years.

This spring, I noticed this lump, marked by arrow. From the top, its really obvious. 

Other side is normal.

 

20190510_120409.jpg

20190510_120330.jpg

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  • Helper

Likely it’s nothing, but if you can put your goldfish in a bowl and take a good macro/closeup under bright light of the affected area, from both top and side, it would help immensely.  Also please fill out this form with details from the pond he came from, it will help us troubleshoot if this could be environmental.

Test Results for the Following:

* Ammonia Level(Tank)

* Nitrite Level(Tank)

* Nitrate level(Tank)

* Ammonia Level(Tap)

* Nitrite Level(Tap)

* Nitrate level(Tap)

* Ph Level, Tank (If possible, KH, GH and chloramines) 

* Ph Level, Tap (If possible, KH, GH and chloramines)

Other Required Info:

* Brand of test-kit used and whether strips or drops?

* Water temperature?

* Tank size (how many gals.) and how long has it been running?

* What is the name and "size of the filter"(s)?

* How often do you change the water and how much?

* How many days ago was the last water change and how much did you change?

* How many fish in the tank and their size?

* What kind of water additives or conditioners?

* What do you feed your fish and how often?

* Any new fish added to the tank?

* Any medications added to the tank?

* List entire medication/treatment history for fish and tank.Please include salt, Prazi, PP, etc and the approximate time and duration of treatment.

* Any unusual findings on the fish such as "grains of salt," bloody streaks, frayed fins or fungus?

* Any unusual behavior like staying at the bottom, not eating, etc.?

 

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  • Regular Member
37 minutes ago, Arctic Mama said:

Likely it’s nothing, but if you can put your goldfish in a bowl and take a good macro/closeup under bright light of the affected area, from both top and side, it would help immensely.  Also please fill out this form with details from the pond he came from, it will help us troubleshoot if this could be environmental.

Test Results for the Following:

* Ammonia Level(Tank)

* Nitrite Level(Tank)

* Nitrate level(Tank)

* Ammonia Level(Tap)

* Nitrite Level(Tap)

* Nitrate level(Tap)

* Ph Level, Tank (If possible, KH, GH and chloramines) 

* Ph Level, Tap (If possible, KH, GH and chloramines)

Other Required Info:

* Brand of test-kit used and whether strips or drops?

* Water temperature?

* Tank size (how many gals.) and how long has it been running?

* What is the name and "size of the filter"(s)?

* How often do you change the water and how much?

* How many days ago was the last water change and how much did you change?

* How many fish in the tank and their size?

* What kind of water additives or conditioners?

* What do you feed your fish and how often?

* Any new fish added to the tank?

* Any medications added to the tank?

* List entire medication/treatment history for fish and tank.Please include salt, Prazi, PP, etc and the approximate time and duration of treatment.

* Any unusual findings on the fish such as "grains of salt," bloody streaks, frayed fins or fungus?

* Any unusual behavior like staying at the bottom, not eating, etc.?

 

Unknown for a bunch of that, nothing added nor odd/wrong with anyone. 

0, 0, 5 or so. Comes out of well like that. 

4k plus gallons.

50% w/c last week.

2011

Planted.

Homemade filters + bog.

 

 

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  • Admin

Do you know if this fish is a male or female? 

I have seen this before. It can either be egg bound or there is a cyst growing inside the fish. 

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  • Helper

Hmm.... does this fish defecate normally?  What do the poos look like?  If you fast this fish does the swelling change at all after three or four days of no food?

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  • Helper

It could a internal cyst, tumor, or egg-binding, none of which are really easy to treat. Sometimes adding lecithin to gel food can help with egg binding but it’s not a very well proven treatment, and unless the fish is showing other symptoms I wouldn’t want to use antibiotics to treat something that likely isn’t bacterial.

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  • Admin
19 hours ago, GoldiesAgain said:

Seems to poop normally, but only saw that once. I haven't seen any fish poop in many years.

Brown, solid.

No change to the swelling.

Lets just keep a close eye on it. :)  Keep the water conditions nice and clean too  :) 

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  • Helper

She looks healthy except for the lump, was there a specific concern you had with the image?  I can’t see both sides well because of fins but she is a pretty fish with good color (nothing that immediately screams infection like red patches or blanched body color) and no dropsy, so that’s all good news :)

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