Taxonomic identifications and wild populations are distinct from commercial lines. Aquapedia marks uncertainties and never invents pedigrees, awards or collection localities.
Evidence-backed findings
A 2024 study compared molecular markers and breeding of red, gold and green Asian arowanas and observed fertile crosses. Color categories are not independently established species.
Population origins
A 2021 Malaysian study recovered three major geographic lineages among sampled populations, better explained by ancient drainage connectivity than fish color.
What is not demonstrated
A line named Chili Red, Blood Red, Blue Base Crossback, RTG, Highback Golden or Platinum should not receive a fabricated parentage tree or simple dominant/recessive genotype. Document breeder claims with source IDs and label uncertain edges.
Historical taxonomic conflict
Names S. aureus, S. macrocephalus and S. legendrei were proposed for some color/locality groups but are synonymized under S. formosus in widely used taxonomic catalogs.
Research sources
Sources support the relevant claims discussed above; unresolved local records remain under review.