Hello anyone and everyone this morning i woke up and saw that my sucker fish had passed away. As i went to get him out i noticed the water was very warm so i looked at the temperature and it said 38 degrees..obviously our heater has malfunctioned killing my sucker fish. our gold shark and silver shark were both still alive until approximately 6 hours later the gold fish passed away too. which was about 1 hour ago from this post.. i want to know if my silver shark is in danger?? he is vey big but the gold shark was alot smaller then the sucker fish and seemed to have lived an extra 6 hours to what we know at least.. please help we dont want him to pass too =(((((( the water is currently 31 degrees we've put as much cool water in as possible and are now leting our climate do the work (cold climate). i read that silver sharks are to be in no more then 29 degrees but he was in 38 .