TROUr-BREEDlNG JN WINTER 1 97 



disease attacking the gills of the little fellows ; and 

 this seems to be entirely without remedy when 

 it gets a distinct hold. 



In about another six or seven weeks you will 

 observe your fry have grown larger, and have 

 nearly, if not quite, lost the umbilical bag or vesi- 

 cle on which they had previously fed by absorp- 

 tion. They must now be removed to the tank or 

 cistern, and in a short time you will perceive they 

 are getting remarkably lively, and dart hither and 

 thither as if in search of food. You can now dis- 

 connect the hatching trough from the reservoir, 

 and allow the water to fall not too lavishly from 

 the filter into the larger tank. Your fish now 

 require feeding, and the all-important question of 

 food now presents itself. At one time grated 

 liver — that is, liver that had been boiled and 

 grated — I almost entirely used ; but it was found 

 to sometimes remain in the water, rendering it 

 impure. However, it will do very well if used 



sparingly. 



In feeding it is absolutely necessary that no 

 refuse be allowed to sink to the bottom uncon- 

 sumed, and so remain to putrefy. I should rec- 

 ommend that, whatever food be given, a good 



