Malt_Vinegar;3997719; said:Do you have any other inverts?
You could use a snail-away type medication..
I used it once on a betta tank I had that was over-run. They were all dropping off the glass and dying within a minute of adding the treatment.
It was incredible, make sure you remove as many of the corpse as you can. Once they start to decompose it will add a huge load of waste to the tank, and it can cause an ammonia spike.
Use such a treatment as a last resort though. Be aware it will probably kill any other inverts in the tank too. I think they are copper based usually too, so will mean the tank should never be used for a marine setup.
Yea, a chemical treatment is probably the only option that is truly going to eradicate the snails, but of course beware that it doesn't harm your other fish
