03-17-2011, 08:09 AM
| || | False. Mystery snails (Pomacea diffusa) do NOT eat plants but they are STILL part of the family, apple snails (Ampullaridae). The Ampullaridae is the largest family of snails with eight genera, Pomacea, Pila, Marisa, Asolene, Felliponea, Saulea, Afropomus and Lanistes.
Originally Posted by badfish123
They must not be apple snail then if they eat your plants. On your question apple snails can tolerate a certain point of salinity.
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Thewatson, where are you located? Your location will help with possible ID of apple snails being none other than the Pomacea canaliculata. In USA, all apple snails (except the Pomacea diffusa) are banned from interstate shipping and can only be obtained legally within your state otherwise, your local USDA will deem it necessary to confiscate the suspected snails and burn them alive in the incinerator. If you're in UK, then I can see why you got snails that can eat plants. I do not believe there is restriction for plant eating species of apple snails there.
Do you have photos of them?
And I do NOT recommend that you acclimate your apple snails to brackish conditions. There's no point risking your two snails. Some apple snails can tolerate it, some don't. Diffusas don't. Canaliculata complex however can. The Salton sea apple snails were collected from a lake near the Salton Sea and they were found to be of canaliculata complex (possibly missing group of Pomacea canaliculata, Pomacea insularum or hybrid of both - which still remains on debate if the cana complex can indeed crossbreed much like the Marisa cornuarietis and Asolene spixi).
Not all snails are intolerant to salt. Faunus ater in Asia can. Hundred species of nerite snails can and do require brackish water in order for their eggs to become viable otherwise, they will not hatch. The exceptions would be Theodoxus fluviatilis, Vitta usnea and most other European and Asian species of nerite snails.