Been a while since I have updated this thread. I went on vacation for the first week of August. I did a water change 2 days before leaving, everything looked great. It was hot as heck out and my temperature went up, but my daughter was home to take care of the high temp swing by opening the top glass panel and getting cool air blowing into it.
I came home, see that I've lost my hammerhead coral, whole bunch of mushrooms, snail's and 2 urchins. I checked the salinity, it kept reading low, even a new batch of water was. I re-calibrated my Hanna checker and replaced the battery. Checked the tank and new water both are sky-high. Remove some water from the DT and add fresh RO water to lower the salinity. Rechecked the DT after about an hour, the tester reads very low again, so recalibrate, rechecked the DT and it's at 1.027. now I know my tester isn't working properly so I went to the LFS and bought the only salinity tester they have, a manual swing arm hydrometer, it reads 1.030. I have lowered the salinity based on the swing arm and have a new Hanna salinity tester on its way, so peace of mind will be had. My tank is looking good, my wife and I seemed to help the livestock over this hurdle. It has been scary, almost wanted to quit, lol ohhhh the summertime Blues with aquariums, lol
My BTA just about died, it's coming back, but very slow.
On top of all this, had major cyano outbreak. I did a red slime removal treatment for 4 days and it has subsided.
I also switched from tap water to RO water purchased from a local water store, it looks like it has been helping too.