Species such as tetras, cichlids, gouramis, livebearers, and other ornamental freshwater fish that are not koi, goldfish, or crucian carp would be classified here if they do not have a more specific subheading.

Mixed shipments where individual species fall under this residual category should be declared under 0301110090; if the shipment contains species with specific subheadings (e.g., koi), those must be broken out and declared separately.

Some freshwater ornamental species, such as certain arowana (Scleropages spp.) and discus, may be subject to CITES Appendix I or II controls, requiring export permits from the country of origin and USFWS import permits.