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 will 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 
