Bizarre hyperplasia in Nile Tilapia - HELP, I need a diagnosis

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zapatower

Plecostomus
MFK Member
Have you tested your water?
Yes
If yes, what is your ammonia?
0,01
If yes, what is your nitrite?
0,05
If yes, what is your nitrate?
0,1
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?
No
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.
Dear MFK lovers:
In the pond, numerous Nile tilapia display conspicuous hyperplastic protuberances. Along the margins, there is an unusual abundance of terrestrial snails, specifically the African giant snail, Achatina fulica. This co-occurrence is striking. While some myxozoans use aquatic snails as intermediate hosts, the presence of a terrestrial snail raises questions about its relevance to the fish lesions. The pattern suggests a potential environmental or parasitic link worth investigating, ideally with input from an ichthyopathologist to clarify etiology and appropriate control measures.
nile tilapia hyperplasia 1.jpgnile tilapia hyperplasia 2.jpgnile tilapia hyperplasia 3.jpgnile tilapia hyperplasia 4.jpg
 
An article in the German magazine DCG Info described something very similar with Oreochromis urolepis in an aquarium. It turned out that small sand particles were becoming lodged in the skin. These particles formed a sack-like fold in the skin, in which more and more sand accumulated over time and which grew quite large.

It would be interesting to find out why sand particles became lodged in the skin in the first place. Was an injury the cause? If so, what caused the injury: normal digging, a parasite, or another disease?
 
An article in the German magazine DCG Info described something very similar with Oreochromis urolepis in an aquarium. It turned out that small sand particles were becoming lodged in the skin. These particles formed a sack-like fold in the skin, in which more and more sand accumulated over time and which grew quite large.

It would be interesting to find out why sand particles became lodged in the skin in the first place. Was an injury the cause? If so, what caused the injury: normal digging, a parasite, or another disease?
Milingu, can you share the article to check this out?
 
I don't have it in digital form. I have to search for the magazine. I guess I have kept it somewhere, but the article is a bit older. It may take some time.
 
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