So I've had my Betta fish Dory for about a year now. We started out with a .5 gallon tank, which quickly became a one gallon bowl, which is now a 10 gallon tank (which has been established for a couple of months now). Along the way Tamandani (a mystery snail) who either came to us via previously used substrate or due to some live plants and Speedo (an assassin snail) who most likely appeared in my tank due to one of the same reasons, have joined us. Dory occasionally demonstrates a little interest and curiosity in Tamandani but for the most part ignores his newly acquired tank mantes and friends (Tamandani and Dory have been in the same tank about six months and I first noticed Speedo a couple weeks later). I don't want Speedo to eat Tamandani and am not comfortable with the idea of live feeding. So far, I've had zero problems, I supplement Dory's food with blood worms and I think the surplus/uneaten food might keep him happy. I'm assuming that if he isn't hungry he won't go after the other snail. So, how do I feed a carnivorous snail? Someone suggested putting a small piece of Tilapia in the tank, which I did, and Speedo just ignored it. Any advice?