12 MAINTAINING FISHES 



more flushing permits the holding of more fish per 

 volume of water. 



If experimental conditions and facilities permit, an 

 arrangement involving even a minimum amount of 

 flushing is the best choice for maintaining fishes in 

 captivity. Problems of accumulated, dissolved wastes 

 and the concentration of salts by evaporation, are 

 corrected by continuous flushing. 



