Well i found a temporary solution.
my peacock mantis is only about 4" long, well i found some HUGE turbo snails, probably 3-4" wide.
I don't think my mantis will be able to take these out, well at least if he took one out, it would take him a week to eat it....lol
I think this will work in the time being.
Now my problem is that I have some of those not-friendly TBS whelk type snails, these are 1" long, for mantis food.
I heard they like to suck the fluid out of other snails, I hope they don't kill my new huge turbos.
I have attached a pic of the TBS whelk hitchhiker snails, can anyone positive ID them?