What's the best food for newly hatched zebrafish?

Very tiny baby zebrafish in large facilities eat even tinier living organisms called paramecia that live in water. These paramecia are grown in jars and are fed to the fish by squirting hundreds of them from an eye dropper into their water. You can't see them very well. It just looks like cloudy water in the eye dropper. In general, live food is best for baby fish. It is easier for them to digest. Your fish will not have to eat until they are floating up off the bottom, though. Hobbyists traditionally use infusoria, a mix of ciliated microscopic organisms that can be grown in cultures of boiled grass or hay. For details see a hobbyist book for those instructions. You can buy an infusoria culture from the pet store in either tablet or powder form. The directions for cultivating and feeding the fry will be on the package. Be sure to explain to the person at the pet store that you want to feed live micro-organisms to baby egg-layers. Another possible food for both the fish and a ciliate ...  more