Silver dollar fish

Classification:
Kingdom       : Animalia
Phylum          : Chordata
Class              :Actinopterygii
Order              :Characiformes
Family           :Characidae
Subfamily      :Serrasalminae
Genus            :Metynnis
Picture:
  
About:
            The Silver Dollar Metynnis argenteus was described by Ahl in 1923. This species is not listed on the IUCN Red List. They are found in South America. There information about their occurrences vary. Atlas references say they are found in Guyana, the Amazon east of Rio Negro, to Paraguay. This may actually be the occurrence of its close relative Metynnis hypsauchen, also known as the Silver Dollar Fish, as other sources suggest M. argenteus is possibly endemic to the Tapajós River basin in Brazil. This species is a schooling fish, mostly inhabiting heavily grown smaller tributaries and feeding primarily on vegetable matter.  In nature they are normally a herbivore in the wild but will eat meat if an easy meal presents itself.The silver dollar is a peaceful schooling species that spends most of its time in the mid- to upper-level of the water. Its maximum lifespan is more than ten years. A chin-layer, the adult fish will spawnaround 2,000 eggs. This breeding occurs in soft, warm water in low light.
Breeding:
                 The best way to acquire a breeding pair is to purchase a half dozen juvenile silver dollars and raise them together. The parents will not consume the eggs or fry, although other fish will, so when spawning them it is wise to place them in a separate tank. To facilitate spawning, make sure the water is soft (8 dgH or below) and warm (80 to 82 F), keep the lighting dim, and provide fine-leaved plants.Eventually a pair will spawn, and the female will lay up to 2000 eggs. The eggs will fall to the bottom of the tank, where they will hatch in three days. After approximately a week, the fry will be free swimming and able to eat fine foods such as commercially prepared fry food,