Direction: 

- Put the tablet into the tank directly, the dosage and duration are listed in the table. 

- Please take out the ornamental snails before use. 

- Safe to aquatic plants, fish and shrimp.

1st day: snails will crawl up to the surface. 2nd day: snails become slow-moving. 3rd day: more than 90% snails could be removed and change 50% water.