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What am I looking at? Red skin tag. Rapid growth.


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I'm salting my tank to help this poor guy's tail rot (recovering) and within the past 24 hours this growth popped up. He had a red spot for weeks but it wasn't raised.

Now it sticks out like crazy.



Any ideas?

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On mobile so links and forms aren't easy. I'll just assume it's the standard stuff.

0 ammonia

0 nitrite

40ish nitrates

20% Waterchange yesterday. Doing them twice weekly because of his tail.

GH about 8.

Ph about 7.6

40 Gallon tall counting the sump.

I'm matching salinity during water changes.

Only recent changes are removing three anubias, adding salt, and feeding them frozen blood worms for the first time.

I feed them hikari lionhead and omega one.

Edited by EvilVegan
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Why are you only doing 20%? :idont

Did the internet feed you the myth of "too much water changes"? :bat:

Does it look like there's anything IN the spot?

Is there any change in the behaviour?

Such a beautiful fish, by the way. Love the chubby wen cheeks with the pearls oh my goooooddddness! :wub: :wub:

Edited by Chai
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>Why are you only doing 20%?  :idont 


20% water changes twice a week isn't enough?


>Does it look like there's anything IN the spot? 

Kinda looks like a bit of blood suspended in a bubble made of slime coat.


>Is there any change in the behaviour? 

No, but he has had tail rot, so he's not exactly Mr Active; he moves around a lot, but he tore his tail down the middle.  


>Any chance you can get a more focused shot?


He won't hold still and my phone camera sucks at zoom. 

It looks like his slime coat has bubbled up, so it is probably a bacterial cyst.  Can those show up after adding salt?  Is he purging stuff?

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The growth is gone.  


But in case anyone ever comes back on with the same thing.


  • Test Results for the Following:
    • * Ammonia Level(Tank) 0
    • * Nitrite Level(Tank) 0
    • * Nitrate level(Tank) 40
    • * Ammonia Level(Tap) 0
    • * Nitrite Level(Tap) 0
    • * Nitrate level(Tap) 0
    • * Ph Level, Tank (If possible, KH, GH and chloramines) 7.8
    • * Ph Level, Tap (If possible, KH, GH and chloramines) 7.2
    • Other Required Info:
      • * Brand of test-kit used and whether strips or drops?  API Master 
      • * Water temperature?  72
      • * Tank size (how many gals.) and how long has it been running? 40, 2 years
      • * What is the name and "size of the filter"(s)?  Wet/Dry Sump 100 CS and Fluval HOB 70
      • * How often do you change the water and how much? 1-2 per week, 20%
  • * How many days ago was the last water change and how much did you change? 2 now
  • * How many fish in the tank and their size? 3, about 3 inches
  • * What kind of water additives or conditioners? Aqualife Complete/Prime/Seachem Akaline Buffer (for the Snails)
  • * What do you feed your fish and how often? Hikari Lionhead, Omega One Medium 3 times a day (small amounts); blood worms once
  • * Any new fish added to the tank? No
  • * Any medications added to the tank? No
  • * List entire medication/treatment history for fish and tank. Please include salt, Prazi, PP, etc and the approximate time and duration of treatment.  Prazi when first got them. Salting at .3% currently.
  • * Any unusual findings on the fish such as "grains of salt," bloody streaks, frayed fins or fungus?  Frayed fins is the reason for the salting.
  • * Any unusual behavior like staying at the bottom, not eating, etc.?  No.
Edited by EvilVegan
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Okay, glad the spot is gone.  It may have been a bacterial cyst that was purged and cleared by the salt.  Let us know how the fins are doing with the 0.3% salt.  


With 3 fish plus snails in a 40 gallon, it would be good to up you water changes to either 50% twice a week or a very large water change once a week.  This not only keeps nitrates low, but reduces organic and pathogen loads in the water :)

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I'm in the process of cycling a 75 gallon to move them to, but yeah I'll start changing more at a time.  


Before salting I was doing massive water changes weekly, but I went down to 20% just because its easier to measure out the salt. :)

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