Ive had my reef aquarium established for a few years now. I purchased my SPS corals and water from the same place since it was established. A few weeks ago my top off reserve pump dumped a a lot of fresh water in the aquarium. I resolved the issue quickly but my tank has went down hill from there. It appears it doesnt matter what i do at this point all of my precious corals have either bleached in sections or refuse to extend polyps. I have tested my water personally and everything appears to be ok, but something is really happening. Each day i look at my coral huge sections of the various colonies are now bleached. Please help.... i fear that i will lose all of my corals
. I find it interesting that it took a few weeks for them to respond in this manner. Another strange find is i purchased a small colony two weeks ago... it is also bleaching. It was added to my tank after the aftermath of the water issue, this leads me to believe that something else is going on.


