4thalove,We tried tubeworms but seeing as they are already cultured in NSW and are more difficult to harvest (ours don't have a tube) we focussed on sandworms.Haven't quite got the PhD yet, the work is done but the pain is still ongoing :SI would love to get my hands on some seaweed worms, have been out a few times but never managed to find them.Not sure I understand your reference to 'clones', our worms are from a wild caught population which breed just like any other worms no Frankenstein business just worm farming.Great to see so much interest