Species that are considered uncertain risk need a more in-depth assessment beyond the Risk Summary to better define the species’ risk to U.S. environments. This additional information will help inform decisions on where, when, and how the species may be used to minimize risks of them becoming invasive.
Copella arnoldi, the Splash Tetra, is a South American freshwater fish that is native to Brazil, Colombia, French Guiana, Guyana, Suriname, Venezuela, and introduced in Trinidad. It is used in the aquarium trade outside of the United States. The history of invasiveness is not documented. It has been introduced in Trinidad and Tobago and established a population. No information on any impacts from that introduction was found. The climate match for the contiguous United States was low with all states having an individually low climate score except Florida, which had a medium individual score. The certainty of assessment is low because of a lack of information. The overall risk assessment category is uncertain.