Dwarf seahorse- need help!



Hi there, So I have had striped seahorses, but never dwarf ones. Stupid me, I did not read up all I should, particularly on the feeding of the dwarf seahorses. I fed my other seahorses frozen mysis shrimp, but I have since read what these require. I need to figure out feeding asap, like today. I am searching my local aquarium stores for instant brine shrimp when they open until I can receive products by mail. Any fast suggestions to sustain these guys until I get a feeding situation regulated? They are happily hitching but awaiting a good meal.