Just went in and fed them and had a good look at the tail again and that Nick has gone i will get a picture tomorrow, so its a nip and not a genetic trait on this one....would have got a picture to night but camera battery's flat...bkk_group said:are you sure it's fin nipping and not a genetic defect? reason i ask is because a good percentage of our current spawn has that exact same notch in exactly the same position, seems too much of a coincidence to me...just speculation on my part though, i have no concrete proof of this..yet.