Red Lump on my 3 year old bichir

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Piopips

Feeder Fish
MFK Member
Nov 19, 2020
25
7
3
44
Have you tested your water?
Yes
If yes, what is your ammonia?
0
If yes, what is your nitrite?
0
If yes, what is your nitrate?
20
If I did not test my water...
  1. ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.
Do you do water changes?
Yes
What percentage of water do you change?
21-30%
How frequently do you change your water?
Every week
If I do not change my water...
  1. ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.
Need help please on my 3 year old bichir. He developed a red lump on his underside. His only tankmate is an arowana that he's been with for 3 years too.
 
Seen these before on captive bred polys. If it’s acting normal then watch. Post pics to make sure.
 
I’d add salt for a few days, 1 tsp per g. Do water changes twice a week. Add a broad spectrum antibiotic like furan2, maracyn2 or triple sulfa. If it doesn’t go away after that then monitor.
 
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I’d add salt for a few days, 1 tsp per g. Do water changes twice a week. Add a broad spectrum antibiotic like furan2, maracyn2 or triple sulfa. If it doesn’t go away after that then monitor.
Thank you. Will do that
 
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