SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/fish-kids-under-5-no-cleaning

Per the CDC, which kids should NOT clean or handle aquarium items?

Children younger than 5.

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  1. Children younger than 5 ✔
  2. Children younger than 12
  3. No limit, any child

Why: The CDC says children younger than 5 should not clean or handle aquarium items, because fish and tank water can carry germs. Older kids can help, with an adult, and everyone washes hands after.

Huh, didn't know that: The CDC suggests dumping tank water in a bathtub, laundry sink or outside, not the kitchen sink.

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Why did the little kid wave at the fish tank? Because the fish waved first.
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References

Answer: Children younger than 5. The CDC says children younger than 5 should not clean or handle aquarium items, because fish and tank water can carry germs. Older kids can help, with an adult, and everyone washes hands after.

  1. CDC Healthy Pets: Fish www.cdc.gov/healthy-pets/about/fish.html
    Don't let children younger than 5 years old clean or handle aquarium items.
    Checked 2026-10-11.

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