I just noticed tiny trumpet snails in my tank that has never had snails before. It has a only a 14inch RTXSN cat in it and I have not added or taken anything out in over a year. The only thing that changes is water which is from my tap and since I live in a city it is all treated and would be snail egg free (I hope). The two foods I put in are Massivore and frozen shrimp from the grocery store. I have been using these two foods for more than two years now. Why are there snails now and where could they have come from?
