Dear community,
I recently experience increasing mortality in my zebrafish,
Starting as early as 8 days post hatch but sometimes even later fish show abnormal swimming behaviour.
They swim in circles or spin around their axis head downwards. Fish showing these symptoms die within days.
Using a binocular I cant identify deformations or any morphological abnormalities.
I already tried different fish origins, feeding protocols and water analysis was also ok.
I am looking forward to your ideas. Thanks in advance.
With the water analysis what did you analyze for? The lack of morphological symptoms would exclude viral and bacterial causes.
@all I'm sorry to hear about the issue you're experiencing with your zebrafish. Abnormal swimming behavior and subsequent mortality can be caused by various factors. Here are some potential causes and suggestions to investigate further:
If the issue persists or worsens despite your investigations and attempts to address potential causes, I recommend seeking assistance from a veterinarian or a fish health specialist who can provide on-site evaluation and specific guidance tailored to your zebrafish facility. They can conduct further diagnostics and help determine the exact cause of the abnormal behavior and mortality in your zebrafish population.
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