While serving in an
Army MASH unit in Korea, he wrote his book
The Handbook of Tropical Aquarium Fishes, which eventually sold more than one million copies. Although the fish had been discovered in Brazil in 1953 by Harald Sioli, a
discus collector, Axelrod claimed that he had made the discovery himself during a steamboat trip on the
Rio Negro, and he sent fish that he purchased from a dealer in New Jersey to the
Smithsonian Institution, where the species was identified. which the university says is one of the largest donations by an individual to a Canadian university. The Axelrod Institute of Ichthyology at that university was named for him. The University of Guelph also named a lecture hall after him, the Axelrod Building, but in 2010 renamed it the Alexander Building, after
Lincoln Alexander. In 1997 Axelrod sold TFH Publications to
Central Garden & Pet Company of California for $70 million. The contract included potential payouts to Axelrod if TFH reached earnings targets after the sale. He sued under that provision, accusing Central Garden of suppressing earnings to avoid paying the extra money. The following year, however, the purchaser filed a countersuit against him, claiming that he had grossly and illegally inflated the value of the company before the purchase. On September 1, 2005, Axelrod was ordered to pay Central Garden & Pet Company $16.4 million (net, after deducting $3.7 million the company was ordered to pay Axelrod due to earnings targets). ==Musical instruments collection==