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JOUJRIUM NUMBER 



Prepared by the Director of the Aquarium 



No. 25 



ZOOLOGICAL 

 SOCIETY BULLETIN 



Published by the New York Zoological Society April, 1907 



THE CARE OF GOLDFISHES. 



As THE care of goldfishes is a subject of 

 constant inquiry at the New York 

 ' Aqviarium, the following information 

 has been compiled from the best authorities for 

 the benefit of correspondents. 



The general principles of aquarium man- 

 agement, so far as they relate to the form of 

 the aquarium, its plant life, water supply, tem- 

 perature, position with reference to light, and 

 the feeding of its inhabitants, will apply to 

 many other kinds of fishes. 



An aquarium holding eight or ten gallons of 

 water will be easier to maintain in good condi- 

 tion, than one of small size, and will contain a 

 larger number of fishes with a greater degree 



of safety. An aquarium of rectangular shape 

 is by far the best for permanent use. It should 

 be of strong clear glass — preferably plate glass 

 — set in a metal framework, and with a slate 

 bottom. Its corners, however, accumulate dirt 

 which is not easily removed. 



Aquaria of rectangular form, made wholly 

 of glass, can be purchased and are cheaper, 

 but the glass is never quite clear, and they 

 crack more readily from changes in tempera- 

 ture. Cylindrical, glass aquaria are still cheaper, 

 but they distort the forms of the objects they 

 contain to some extent, and are also liable to 

 crack from water pressure. However, aquaria 

 made wholly of glass have the advantage of 



Presented to the Ne 



FANXY JAPANESE GOLDFISH. 

 V York Aquarium by Mr. Henry Bishop of Balti; 



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