Thanks Ruben, I think we shall be having a lot more snails then... I have them in my baby fish tank/pools inside... aka I am way over feeding (and rinsing the filters often because of it)... I didnt feed the first babies enough, and they started eating each other (bigger babies ate the smaller babies)... Now I feed plenty (like 5x a day) and even my most microscopic babies are still there;-) In the youngest batch, they are now only 1/3 - 3/4 of an inch in size.