Suspicious Cysts Killing Fish - What Are They?

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The discussion centers around identifying round objects observed in a fish tank, suspected to be cysts from bacteria responsible for fish deaths. Participants clarify that bacteria produce spores, not cysts, and emphasize the need for more information to diagnose the issue accurately. They highlight the importance of considering other potential problems, such as chemical imbalances, fungal infections, or parasites, and request details about the fish species involved. The microscope's amplification is noted to be approximately 15x combined with either 10x or 16.2%, and it is mentioned that staining was performed using saffronin.
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Does anyone know what the round round things are? I believe they are some cysts of the bacteria which has been killing all my fish
 

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First, bacteria produce spores not cyst. Second we need more information. what is the amplification of the microscope. Also did you do any stainning on the organism.
 
chound said:
Does anyone know what the round round things are? I believe they are some cysts of the bacteria which has been killing all my fish

What leads you to believe that it is bacteria that are killing your fish? There are many other problems that can go wrong in fish tanks, ie, chemical imbalance/overload, fungal infection, parasite infestation, etc. It's not that I doubt you, we just need some symptoms to better diagnose the problem and hopefully suggest a solution.
 
Oh it would also help you tell us what kind of fish you got.
 
I don't know what type of fish it it is

The amplification is probably 15x * 10x or 15x * 16.2% - 10x

I did stain it using saffronin.
 
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