Actually I have seen this before. My friend bought one of live aquaria's divers den. They had it labeled as a snake anemone. I just texted him and he says that nothing of his will host it and it has the same care as a bubble tip with the aggression of a condy. He feeds it weekly. It has eaten 3 fish due to its size. He also has it on the sand and rock. Half of the foot is on the rock work and the rest is on the sand. He also said that it does not move as often as his other nems. Good luck with it! If I didn't have expensive fish and coral I'd jump on it!