I am sorry to learn what happened to your LTA .. well, if it just happened it is hard to tell the chance of surviving the injury .. by the next day, you should be able to see if it has a chance to survive or not .. But a quick look: If only the tentacles that were injured/damaged/separated, then you have a good chance .. but if part of the foot/body/mouth is damaged, then you have a very slim chance .. I had the same issue with mine and it survive then re-grow the damaged tentacles .. protect the LTA from any disturbance if you can .. also without the tetacles, you have to help feeding the food.