I've been dealing with an unwanted MTS infestation, so I'm getting an assassin snail soon to help control the population a bit. It's been a while since I've kept any inverts and I've done my research, feel pretty good about it, but have one lingering question. When I kept nerite snails with bettas in the past, the nerites would climb over the water line, onto the bottom of the lid and try to escape the tank. Will an assassin try to do this as well?