i never heard tiger barbs eating snails until i seen it with my own eyes. ive got snails in my 30 gal (i put them in) along with tiger and green barbs with a red tail. when ever i see a snail on the water line or on my hood i just smashed them with my finger and they fell down. i was doing this one day i noticed my barbs were fighting over the falling snail that was smashed then my snail population went down to nothing so i put some more snails from my 75 gal tank. sitting there watching them they were pecking at the live snails all of them and killing them. the green were less aggresive but they were haveing at them also.should i worry about my barbs eating snails? never heard of this before. i think the snails are conical shell snails not sure