Hey mr after a year my sps 155g tank crash due to the tank having a very small leak on the bottom. Water was leaking out and the ATO was topping off which brought down my salinity very very low @1.010 tried to save the tank with a big water change but woke up to a bleach out tank will try to put some pics up. Home today and will try to set up my new 300g dd to save my 22 + fishes any help , thoughts ,and comments will be appreciated thanks Nick.