The Tropical Tube 40W 48" by Aqua One is expertly designed to emit the optimal blue and red light spectrum for photosynthesis in aquatic and terrestrial plants. This leads to lush plant growth and enhances the natural beauty of goldfish and tropical fish, making it a great choice for aquariums and terrariums. Additionally, the tube's wavelength is adjusted to match the needs of plants, creating a visually stunning and thriving environment for all.