SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/fish-research-before-buying

What should a family do BEFORE buying any fish?

Learn about the species first: needs differ a lot.

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  1. Research the species' needs first ✔
  2. Buy the brightest fish they see
  3. Pick fish, then buy any tank

Why: Fish species differ in water temperature, pH and temper, and some will attack or eat tankmates. Vets and the CDC both say to research which fish suit your family and tank before buying.

Huh, didn't know that: The CDC warns that some fish are dangerous, even venomous, and not safe to keep.

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What did the fish say to the encyclopedia? Let me just skim you first.
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References

Answer: Research the species' needs first. Fish species differ in water temperature, pH and temper, and some will attack or eat tankmates. Vets and the CDC both say to research which fish suit your family and tank before buying.

  1. Merck Veterinary Manual (pet owners): Introduction to Fish www.merckvetmanual.com/all-other-pets/fish/introduction-to-fish
    you should learn as much as possible about the types of fish you are considering for your aquarium before purchase.
    Checked 2026-10-11.
  2. CDC Healthy Pets: Fish www.cdc.gov/healthy-pets/about/fish.html
    Before buying a pet fish, make sure a fish is the right type of pet for your family.
    Checked 2026-10-11.

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