THE GOLDFISH AND ITS CULTURE. 73 



transporting vessel into the aquarium must be made with great 

 care. 



The shape of the aquarium and the location in which it is placed 

 determine the number of fish that can comfortably live in it. Should 

 the location be bad as regards light, the amount of oxygen generated 

 in the tank will be less, while if the situation is highly favorable in 

 every respect, the evolution of the life-giving gas wil) reach its max- 

 imum degree. 



The quantity of water required for a given number of fish is 

 regulated by their size and the nature of the treatment they have 

 received before they came into our possession. If, for instance, they 

 were raised or had been kept in running water, or were newly caught 

 in a large pond, they will naturally require a much larger quantity of 

 water than if they had already been accustomed to a life of captivity. 



As a rule, and it is a reliable one, each fish of three or four 

 inches in length should be supplied with a gallon of water in which 

 to live. Of course this norm may be disregarded for a limited 

 period with impunity, but for the continuous wellfare of the fish it 

 must have its proper share of water. 



The location of the aquarium should be such that the plants in it 

 will be stimulated to their full capacity of growth, as this is the prime 

 factor upon which depends the maintenance of the aquarium in a 

 proper condition. 



The subject of food is one that is but little understood by the 

 majority of people, and is also a matter of no little importance. 

 Most persons, in their anxiety to supply their pets, greatly overdo the 

 thing ; the waste material accumulating in the water, remains until it 

 putrefies, thus polluting the water and rendering it detrimental to the 

 health of the fish. 



The feeding time should be but once a day, and that at a regular 

 hour, the food to consist of flies or prepared fish-food, such as is 



