I have been reading up on them, and they are quite interesting. I bought them a cuttlefish and put it in the tank, and within a few minutes they were all over it chewing away, and you could hear them munching at it. I know they don’t have teeth in the real sense, but it sounded like they did. They have a Radula, which has “teeth” up to quarter of a million it seems, and they use that to eat their food.
They are not all that big at the moment, so not really giants, but they are a hell of a lot bigger than the ones that we see in the garden.