Can you feed duckweed to goldfish?

Yes, duckweed is a suitable food source for goldfish. It is a small, fast-growing aquatic plant that can provide your goldfish with a variety of nutrients, including protein, fiber, and vitamins. However, it's important to feed duckweed in moderation as it can quickly multiply and create a dense cover on the water surface, limiting oxygen exchange and sunlight penetration for other aquatic plants and animals.