i would assume that just like my regular fish tank a lid and a quality filter will go a long way in preventing the stink. a large tank will help also, most bait tanks i see are way over crowded. i dont usually set up a dedicated bait tank but i do keep the minny bucket in my appartment during ice fishing season and i can usually keep the gf happy by frequent water changes. it doesnt take long for an over crowded bait bucket to turn the water rancid.