Feeding hatchlings live mysids and amphipods can be costly and time consuming. They require quite a bit of small live foods as babies, and possibly for the first 2 mos.
If you decided to raise 5 from eggs for instance, you may go through 1000 mysid shrimp before you get them eating say...PE mysis then frozen krill. IME, neither of these foods really satisfies them completely.
I still encourage anyone with some reefing or sw experience to try them.