- 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?
- 38
- If I did not test my water...
- ...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
- If I do not change my water...
- ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.
Hello, been keeping arowana for about 12 years and I have never seen anything like this so figured I would post about it.
Check out photo if the issue.
Silver though an ugly specimen has been with me for almost 8 years and is around 32-34 inches long.
I noticed this about an hour ago and I keep very close eyes on all my fish. I did not notice this until today.
This one is housed in a 600 gallon aquarium with a 150 gallon sump.
Water parameters are 38ppm nitrates, ammonia 0, nitrite 0, ph around 7. It is on an auto drip system that I tune the nitrates to stay in between 30-40 ppm.
Im going to start treatment with salt with around 500 ppm while im doing more research.
My question is, does anyone reconize this and if so what is the recommended treatment?
Thank you.

Check out photo if the issue.
Silver though an ugly specimen has been with me for almost 8 years and is around 32-34 inches long.
I noticed this about an hour ago and I keep very close eyes on all my fish. I did not notice this until today.
This one is housed in a 600 gallon aquarium with a 150 gallon sump.
Water parameters are 38ppm nitrates, ammonia 0, nitrite 0, ph around 7. It is on an auto drip system that I tune the nitrates to stay in between 30-40 ppm.
Im going to start treatment with salt with around 500 ppm while im doing more research.
My question is, does anyone reconize this and if so what is the recommended treatment?
Thank you.
