FISH PHOTOGRAPHY AT HOME 181 
do so in a position where it was possible to take a 
photograph. 
The tank in which these illustrations were obtained 
was arranged in much the same manner as that already 
described. Above the tank was placed a large bucket 
which was filled up two or three times a day with water 
containing thousands of cyclops, daphnia, and other 
minute fresh-water crustaceans, and the water from 
this bucket was allowed to flow slowly through the 
tank. As this form of food is most useful for feeding 
all sorts of small fish in aquaria, I will describe a simple 
method of obtaining it. 
Procure two or three large tubs, and on the bottom 
of each place six inches of straw and manure. On the 
top of this can be planted a few water-weeds to make 
the tubs artistic. 
Next procure a wide-mouthed bottle and a glass 
funnel which will go into the bottle. Over the mouth 
of the funnel tie a piece of very fine muslin, and to the 
other end of the funnel attach about a foot of india- 
rubber tubing. Now go to the nearest ditch or stag- 
nant pond, and, using a pail, fill up the bottle with 
water, put the funnel into the water in the bottle, and 
start a syphon action by means of the rubber tubing. 
As the water is syphoned out of the bottle, keep on 
replacing it with water from the pond. In this manner 
gallons of water pass through the bottle, but the fresh 
water crustaceans are prevented from escaping by the 
muslin stretched over the mouth of the funnel. Very 
