You can determine the sex of the assassin snails by the stripes. The larger stripes and wider is the females and they are bigger in size over the males. The males are thinner stripes and are smaller. I have 8 assassin snails in my 55 gal. tank to control the #'s of MTS snails. The assassin snails do a good job in keeping the MTS numbers down. The MTS snails are not a problem with my live plants I just have alot of tiny ones crawling in my sand. I think that the Assassin snails are really pretty with their brown and yellow stripe spiral shells. If you get so many of them sell them to a local fish store. People want them for the snail control and
http://www.Aquabid.com The Assassin snails sell for a really high price just for a few of them. I ordered some Earthworm sticks from
http://www.kensfish.com I was told that if they run out of snails to eat they like this. They need protein food to survive but can survive of the fish food you feed your reg. fish.