corydoras pygmaeus

Hey guys, I hope I'm right posting this here.. My situation is following: I have had my tank (15 gallon, planted, no CO2, 3 pepper corys with 1-2 more to come, 6 amano shrimps) for about a year now without a problem. Ive been away once on business for 10 days and a friend took care of my tank...

Hi all,   I'm getting 10 Pygmy Corys soon for my 22 gallon tank and I'm wondering what to feed them.   What do you feed yours?   What foods do they love?   Any help is appreciated. Thanks.