Soaking the plants in various chemicals may kill off the snails and their eggs. A 10-minute bath in a solution of 20 parts water to 1 part chlorine bleach has been suggested for hardier plants, followed by soaking in water containing a dechlorinating agent. A more gentle treatment calls for 5-10 tablespoons of alum to 1 gallon of water for 2–3 days. A safer alternative may be placing the plants in a quarantine tank, and adding snail poisons to that tank rather than the main show tank.