SOME FRESHWATER AQUARIUM FISHES 



These are all abundant in the small tributary streams of the Delaware, 

 and when young are difficult to identify as they all look much alike. The. 

 adults, however, are different and develop brilliant colors during the 



FIG. 50 — Silver Fin, Notropis anatoslatius 



spring or breeding season. The young of almost all species of freshwater 

 fishes are often called minnows. The minnows thrive best on boiled 

 cereals and small particles of earthworms, dessicated meat, shellfish, etc. 



THE SHINER OR ROACH 



This beautiful fish, Abramis crysoleucas. Fig. 51, may be kept in the 

 aquarium and is perhaps the most hardy of all of our Minnows or Cypri- 

 noid fishes. Instances of a long survival of this fish in the aquarium are 



FIG. 5 1 — Shiner or Roach, Abramis cryioleucai 



frequently mentioned, and, as it is of interesting habit, it will reward the 

 fancier to'introduce it, but not together with the finely bred goldfishes, as 

 it tears their tails and fins. Its food is like that of the minnows. 



83 



