JBL LimCollect II -Snail Trap- fights snail plagues without chemicals device to catch water snails in the aquarium. Gammarus shrimps or food tablets like JBL NovoFect are make an ideal bait. Place the JBL LimCollect II Snail Trap in your aquarium during the night, wait and remove the trap full of snails next morning. New: 2 rods can be inserted in 2 positions as a variable height limit at the inlet to prevent the aquarium fish. JBL LimCollect II also catches runaway house crickets, crickets and coackroaches.Do you have questions about this article ?