The ISTA Snail Collector is ideally designed for controlling rapidly multiplying snails in aquariums. Snails are enticed into the trap using bait (including ISTA Snail Food). Additionally, the ISTA Snail Collector can be used to capture bristle worms in marine aquariums. Its special design ensures that snails are directed only towards the trapping zone. Avoid harmful medications by using this natural method for snail capture. The trap features air holes and an attached fishing line, making it simple to submerge to the bottom of the tank and easy to retrieve.