FISH PHOTOGRAPHY AT HOME = 179 
does not show up satisfactorily in consequence of the 
fish being mixed up with the weeds. 
When away from home, I have devoted a consider- 
able amount of time to recording various types of 
fish ; but at home I have usually taken one fish at 
a time, and photographed it in various attitudes, or 
its movements and methods of feeding. This is not 
altogether an easy matter in a tank. First, the fish 
must be procured, then he must be kept in the tank 
under as favourable conditions as possible, in order 
that he may become “at home” in his unusual sur- 
roundings before any attempt is made to photograph 
him. 
As an example of how to go to work to illustrate 
the attitudes and habits of fish by photography when 
working with a tank, I will explain how I obtained 
the three photographs of a perch facing p. 6 and 
the photographs of the nesting of the stickleback. 
The perch is a sulky fish and difficult to photo- 
graph, and for the first two or three years the results 
I obtained were very poor, because I tried to photo- 
graph the fish before he had settled down in the tank. 
About three years ago I constructed a tank on the 
same principles as those described, but of much larger 
size. In this I planted reeds, and allowed them to 
grow. On a platform behind this tank I also grew 
reeds in tins holding water. The glass of the tank 
was cleaned daily on the inside to prevent it becom- 
ing green. Into this large tank I turned a perch 
