The ex-con who allegedly slashed a famed Brooklyn pizzeria owner in a knife fight over a love triangle is now cooling his heels in federal prison.

A judge parked Benny Geritano, 39, at the Brooklyn Metropolitan Detention Center after a Friday hearing following his weeklong stint on Rikers Island.

Geritano was on federal probation for his role in a nationwide bank-robbery spree when he allegedly lunged at Lucali owner Mark Iacono, 44, with a knife in an April 16 dispute.