Hopefully you'll have a tank full of shrimps before long and the more there are the more they'll eat. When you fist put shrimps in the tank you'll need to watch and see how much they actually eat, then you'll be able to work out a proper feeding schedule going forwards.
When I first had red cherry shrimps they were with pygmy cories and chili rasboras. Then I had to close that tank and move everything into my main tank which has: pearl gouramis, Espe's rabsboras, Daisy's rice fish, peacock gudgeons, one last pygmy cory and the last 3 chlili rasboras.
(They were sold as chili rasboras but I think they are actually Boraras urophthamoides rather than B. brigittae. Very similar though)