I was an on Australian based forum where the admin primarily collects his own livestock from the Great Barrier Reef. He has kept some interesting cephs including flambouyant cuttlefish and Pyjama squids, which are apparently common enough that he even uses the pyjamas in his homemade fish food Anyways, he had stated that he's kept flambouyants with other predatory fish (lionfish) without issue. Presumably because the lionfish knows the cuttlefish is toxic and vice versa. It makes sense from an ecological standpoint that they wouldn't eat eachother, but I wanted to know if anyone else has noticed this type of interaction. It would be interesting to note, as it could potentially expand tankmate options, such as toxic cephs with large predators, or toxic inverts with regular cephs. I doubt anyone in the USA would experiment with their extremely rare and expensive flambouyant, but other combos would be interesting.