File:Aquatic life (1917-1918) (19559376700).jpg

Title: Aquatic life
Identifier: aquaticlife319171918baus (find matches)
Year: 1917-1918 (1910s)
Authors: Bausman, Joseph E
Subjects: Aquariums; Fish culture
Publisher: Philadelphia : J. E. Bausman
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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118 aquatU Hit On the Use of Oxygen in Aquarium Aeration ERNEST LEITHOLF Desiring to install a syste mof aeration, Mr. Adolph Dormeier, of Pittsburgh, suggested compressed oxygen as a pos- sible solution of the problem. While familiar with the use of this gas in cases of drowning and asphyxiation, and its employment in shipping live fishes in sealed cans, its suitability for our pur- pose seemed problematical, nevertheless, it was subsequently installed in our con- servatory. tank to the aquaria was constructed of one-eighth inch iron gas pipe, with a T fitting at each aquarium. In the outlet of each T was placed a "crank case drain cock," and from the cock to the releaser or distributor in the aquarium, a length of rubber hose. We are using two kinds of releasers. One is a cross-section of basswood in- serted in the end of the hose in the aquarium, the other was made by Mr. Dormeier from a piece of hard carbon, such as is used in arc lights and dry bat- teries. Taking a piece 2 inches long and ^-inch in diameter, a hole was drilled
Text Appearing After Image:
Cichlasoma steindachneri Original Painting by W. L. Brind The outfit is exceedingly simple, con- sisting of a tank or cylinder of oxygen, a pressure regulator, a pipe line to the aquaria and some fittings. The regulator we employed is the style used in welding. One gauge indicates the pressure and amount of oxygen in the cylinder, while the other serves to reduce the pressure to the "working point," at which it is desired to use it. This apparatus is expensive. A low pressure regulator, which can be adjust- ed to deliver the oxygen at the proper pressure for use, will serve the purpose just as well and costs but a third as much. The discharge Hne from the oxygen lengthwise, not quite to the other end. A short section of brass tubing was ce- mented in the hole to which to attach the rubber hose. To assemble and operate the outfit, the pressure regulator is first attached to the cylinder of oxygen and connec- tion then made to the discharge line run- ning to the aquaria. Making certain that the regulator indicates zero, open wide the main valve of the cylinder. Then turn the adjusting screw of the regulator until sufficient oxygen is pass- ed to aerate the aquaria. Tanks or cylinders of compressed oxygen can be secured from the Linde (Concluded on Page 120)

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