The company that owns an aquarium that burst inside a Berlin hotel on Friday has expressed its “dismay at the accident.” The reason for the bursting of the huge cylinder full of water is still “completely unclear,” said a spokesman for Union Investment, Fabian Hellbusch. “We are currently trying to get a more precise picture of the situation and the damage caused in coordination with the police and fire brigade on site.” He added that there had also been some “luck in the face of adversity” when one considers what could have happened. “We deeply regret that a large number of the fish kept in t…