This paper reports a natural concurrent infection by water moulds of the genera Achlya and Protoachlya in a red tilapia hatchery in Malaysia. In December 2024, a mass mortality of cultured juvenile red tilapia was noticed at 7 days after transportation and introduction into a hatchery. The affected fish showed lethargy at the bottom of the tanks, loss of appetite, pale colouration, and were isolated from the schooling group. F...

Indonesia’s extensive laterite nickel reserves drive substantial nickel mining activities yet pose environmental risks due to the wastewater’s hexavalent chromium (Cr(VI)) contamination. This study evaluates a continuous-flow electrocoagulation reactor, using aluminum and iron electrodes to remove Cr(VI) from nickel mining wastewater. Optimization via a Box-Behnken design examined current intensity, flow rate, and reactor flow...