Hello, yes so I've heard. They say freshly hatched is the way to go. I'm growing them for all purpose in tank, if he eats some then that's fine with me. But will like for him to have a varying diet. All the above sounds like a good idea. If he doesn't eat it the rest of fish and corals will still take advantage of it. Tha ks for your input.Brine shrimp is more like potato chips. It’s better to get them on something of higher quality. If it’s all they eat for now that’s good but it will not sustain them.