Newly hatched zebra danio fry need microscopic foods such as infusoria, paramecia, rotifers, vinegar eels, or baby brine shrimp. As they grow, introduce flake food, live foods like daphnia and cyclops, and commercial fry food.
Feed small amounts several times daily, remove uneaten food promptly, and keep the water clean and well-oxygenated. Provide hiding places to reduce stress.