Red finned speckled silver dollar. (metynnis argenteus (common silver dollar) and metynnis lippincottianus (spotted silver dollars). In the wild they are mostly vegetarian but are opportunistic so the occasional bug or small fish can be on the menu if it is slow enough to catch. Silver dollars are a fairly long lived fish with life spans over 10 years with proper care. HERE AT ALAMEDA: we have 2 in the aquarium in the education center you will see them chasing and paying with one another. You can be amazed that they are a distant cousin to the terrifying piranha. |