Well that sucks as I have not added any coral recently. To be honest the coral looks fine all day and then next day its gone. I never see the jelly.Looks like brown jelly disease from the skeleton.
Its not slimy like jelly; its just brown algae.What's the brown stuff on the dead heads?
I accidentally gave my one Torch BJD when I was cleaning out my waterbox 10 AIO rear chambers and by mixing up so much bacteria and detritus it got to the coral, some ways I have helped stop BJD from spreading in my new larger tank Is any time I have it happen I run new Felt filter socks or finer one to catch anything in the water, run full carbon. And if you have it run a UVIts not slimy like jelly; its just brown algae.
The coral look a bit better today and no lost heads overnight. Will have to keep an eye on them and see.
As long as it’s RODI it shouldn’t matterOnly thing that comes to mind is I used city water to setup the tank. Last few months I started using well water for top off. Maybe I should switch back to city water.
As long as it’s RODI it shouldn’t matter
Nothing new in months. The corals look better after dipping in peroxide and knock wood no other heads gone so far.If the only thing you changed was the water...it has to be the cause. Have you added any new corals ?