http://www.eshalabs.eu/pages_eu/faqs_engels.html
3. Tolerance on eSHa products
3. Can I use eSHa products in an aquarium containing aquatic snails?
Nearly all eSHa products for fresh water are suitable for use in fresh water aquaria containing aquatic snails (for example: apple snail). Protalon-707 and eSHa-2000 may kill aquatic snails. An anti snail treatment such as Gastropex is obviously not suitable for use in an aquarium containing aquatic snails (For more information check the "Extended Product information" on this website)