AMATEUR FISH CULTURE 



reduced to five thousand, which may be left till 

 October, when they should again be thinned out, 

 or, better still, put into larger pond." 



I should advise the amateur who is dealing 

 with only a few thousand fish to work on a 

 smaller scale in these proportions, and to make 

 these changes gradually, and yet more gradually 

 as the season advances. That is to say, work 

 with a third of the number of fry in ponds half 

 the size and move some fish several times before 

 the end of July. As October approaches, make 

 changes of smaller numbers of fish more fre- 

 quently. 



Late in the autumn is, in my opinion, the 

 best time to put the young fish into the water 

 they are to inhabit permanently. It must be a 

 mistake to rear them artificially longer than is 

 necessary, and by the end of November they 

 should be fairly capable of looking after them- 

 selves. 



Trout, which are artificially reared on chopped 

 meat and other soft foods, suffer from a lack of 

 development in the stomach walls, and also, pro- 

 bably, in the rest of their digestive apparatus. 

 The first case I saw of the stomach of an arti- 

 ficially reared trout was a two-year-old trout, 



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