SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/fish-dropsy-pinecone

What does dropsy describe in a fish?

Fluid building up in the abdomen.

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  1. White spots on the skin and fins
  2. Fluid building up in the abdomen ✔
  3. Scratching against tank objects

Why: Merck uses dropsy and pinecone disease for fluid accumulation in the abdomen. It can appear with Aeromonas and other disorders, so a veterinarian or fish health professional should diagnose the cause.

Huh, didn't know that: Merck says koi and goldfish are especially likely to get certain bacterial infections.

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What do you call a fish that's always on time? Punctu-eel.
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References

Answer: Fluid building up in the abdomen. Merck uses dropsy and pinecone disease for fluid accumulation in the abdomen. It can appear with Aeromonas and other disorders, so a veterinarian or fish health professional should diagnose the cause.

  1. Merck Veterinary Manual: Disorders and Diseases of Fish www.merckvetmanual.com/all-other-pets/fish/disorders-and-diseases-of-fish
    fluid accumulation in the abdomen (“dropsy” and “pinecone disease”)
    Checked 2026-10-11.
  2. Merck Veterinary Manual: Disorders and Diseases of Fish www.merckvetmanual.com/all-other-pets/fish/disorders-and-diseases-of-fish
    Koi and goldfish are especially susceptible
    Checked 2026-10-11.

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