I breed nauplii and infusoria. Go to your petstore and ask for rabbit poo, put it in a glass jar on a window sill for 24 hours and you have green water. Spray over the fry with an eye dropper and you have perfect food. Infusoria is also more stable than nauplii in FW so any that are not eaten will consume nitrogen by-products (be it in tiny amounts, but still; any helps)