will corys eat...?

It sort of depends on the cory. Corydoras do like their vegatables, but bloodworms are a favorite treat as well.
Try various vegatables and you may find one they like.
good luck
:)
 
I haven't had much luck with mine eating fresh veggies, but they do really go for the sinking algae wafers. They also get their fair share of frozen bloodworms and brine shrimp.
 
AquariaCentral.com