sentences:  "The New York Times" has written that "his importance was undeniable.In an era before web forums and Google, collectors turned to "Tropical Fish Hobbyist" and Axelrod's dozens of books".In 1956, Leonard P. Schultz described the cardinal tetra, a popular aquarium fish, and gave it its scientific name, "Paracheirodon axelrodi", which honors Axelrod.