The effectiveness and safety of genki balls, a popular anti-pollution initiative, was debated at a symposium at Hawaii Pacific University. The balls, packed with effective microorganisms, have been used in Hawaii waterways, particularly the Ala Wai Canal. However, new research has raised questions about whether they actually improve water quality. The study found no evidence that genki ball improved water quality and, in some cases, observed potentially harmful effects. Higher application rates caused dissolved oxygen levels in water to drop significantly, which can lead to fish kills and harm other aquatic life, including native species. The Hawaii Department of Health responded to the findings, stating there is limited scientific evidence to determine the benefits or potential concerns associated with genkiball use in state waters.