i would start with the ember tetras first. let them get all cozy for a few weeks, then add the nerites. give it another week, and add the gourami. give it another week or 3 then add the amano. shrimp really need to be put in a fairly well established aquarium. even though amano's are as tough a shrimp as they come, id still do them last. as for amano food, besides them nibbling on stuff growing in the tank, they will nab the fish food that hits the bottom or gets in the cracks/crevices. id not feed them directly.