Small invaders in my garden

It's the rainy season, and with that it only takes a few minutes of leaving my wife's dogs and cat food plates unattended for the snails to attack and infest, they come searching for food and they indeed find it. I have tens if not huhndreds in my garden, all from the size of my thumb to very very small (pen in the pic for size comparison)!

En época de lluvia, bastan tan solo unos minutos en que deje abandonados los platos donde comen mis perros, para que se llenen de caracoles buscando comida!! Desde gigantes, casi del tamaño de mi pulgar, hasta liliputienses, tan solo un poco más grandes que la punta de un bolígrafo!