0 0 Does this begin to work immediately? How much do rodents need to eat? It seems like it builds up in their system to be fatal. Share Facebook Twitter Google+ Tumblr LinkedIn Mail Chryss asked 12 months ago You must login to post comments Answers (1) Filter Sort by: Most Votes Newest FirstOldest FirstRandomRecently Active Post Answer Keyword Match all Match any Accepted/Unaccepted Show accepted answers only 0 0 Terad3 Blox is a single feed rodenticide meaning the rodents will consume a lethal amount after 1 feeding. According to the manufacturer, the rodents will die within an estimated 1 – 3 days after consumption. alexbotz answered 12 months ago You must login to post comments Showing 1 result Your Answer Please login first to submit.