CHAPTER V. 

 THE NURSERY. 



THE next use for the water, after it passes over the 

 eggs, is for rearing the young fish. 

 This department should be arranged with great care, 

 as it is here that the trout pass through the most deli- 

 cate portion of their lives, and require the most vigi- 

 lant attention. Hatching trout is easy enough, and so 

 is the growing of them, after they are a year old. But 

 to bring them through the first year, and especially 

 the first six months, is a more difficult matter. This 

 was the snag on which the earlier trout-breeding enter- 

 prisers were wrecked, and it is here that the greatest 

 losses have occurred with most trout breeders at all 

 times. This has been the one weak point of trout- 

 raising, and those who have succeeded in all other 

 points have often failed here. It is obvious, then, 

 that it is very important to have this department just 

 right. 



THE WATER. 



The water coming from the hatching-troughs should 

 have considerable fall before it enters upon this part 

 of its work, and the more the better, up to the height 

 of three feet, especially if any young fish are still kept 

 in the troughs. 



If it is proposed to raise the young fry in a pond, 



