This creation system provides a kind of green alga incubator, and it includes groove body, light-transmitting plate and light-emitting components. Groove body system accommodates water plant and the water body for aquatic plants growth. Light-transmitting plate system is arranged on what groove body. Light-emitting component system is arranged on what light-transmitting plate, to issue the light source for penetrating light-transmitting plate and entering groove body inside. The bottom of the high what light-transmitting plate of the water surface elevation system of water body, so that the bubble in water body floats below light-transmitting plate to from the water surface, to avoid bubble rests below light-transmitting plate and reflects or reflect light source. 本創作係提供一種綠藻培養箱,其包含槽體、透光板以及發光元件。槽體係容置水生植物以及供水生植物生長之水體。透光板係設置於槽體上。發光元件係設置於透光板上,用以發出穿透透光板進入槽體內部之光源。水體之水面高度係高於透光板之底部,以使水體內之氣泡從透光板下方飄至水面處,以避免氣泡停留在透光板下方而反射或折射光源。