This research demonstrates an innovative approach to cleaning wastewater using a combination of algae and fungal pellets. The scientists optimized conditions for growing Aspergillus niger fungi as compact pellets that can efficiently trap and harvest microscopic algae cells. When these fungal-algae pellets were used to treat wastewater, they removed over 90% of harmful nutrients like ammonium and phosphate, making it a cost-effective and environmentally friendly alternative to traditional water treatment methods.