That's what I've been doing , feeding every other day.I like ramshorn snails better than bladder snails. Both have pretty weak shells & can be smushed against the glass to kill them...unless you're very squeemish. The corys may eat the "leftovers". Both lay "jelly masses" of eggs; they can be scraped off & vacuumed out...but just scraping them off is not enough.
Trumpet snails have much harder shells. Less food for all snails is a first step to their control.