Hi i have a 5 gallon freshwater tank with about a 1 teaspoon to 1 table spoon aquarium salt added to it. I have 1 mickey mouse platty 1 balloon molley 1 double swordtail and 1 betta. About a couple weeks ago i got a jave fern. They were selling snails in that tank as far as i remmeber. Yesterday i noticed this little guy going around my tank. I am just wandering is it something to be concerned about and what species of snail is it?