The Aquarium 



An aquarium can be a beautiful and interesting addition to a room. 

 If properly planned, no other combination of living things occupies 

 so little space, requires so little care, and is so consistently attractive. 

 To attain this ideal condition certain rules must be followed. 



AQUARIUM SIZE 

 An aquarium for vertebrate animals should have a capacity of not 

 less than lo gallons. My favorite size is one 30 inches long, 15 

 inches wide and 15 inches high. It holds approximately 30 gallons 

 of water (231 cubic inches to the gallon). I cannot adequately 

 explain the success experienced with this size but it seems to have 

 the ideal surface area to depth ratio. Appreciably deeper tanks 

 seem to hold near the bottom a layer of stale water that adversely 

 affects both plants and animals. Appreciably smaller tanks lack 

 volume and are subject to great fluctuations in temperature. 



AQUARIUM LOCATION 

 The aquarium should be located where it gets abundant light, 

 preferably from the top. There should not be more than one or 

 two hours of direct sunlight. An east or west exposure is good. 

 If the spring light is so intense as to produce an abundance of 



