A small diffuser tube, air tube, and CO2 cylinder kit that can be easily added to the aquarium, essential for photosynthesis of aquatic plants. The aquatic plants grow beautifully and the fish is also rich in oxygen. Compact so it can be used in small aquariums. Easy and safe for beginners. The diffuser tube uses a special diffusion net, which gently releases CO2 so it is safe for fish.
CO2