Bleached Tri Colour Is there any hope

[Jason McK]

I think it all happened when I allowed the tank to go to 86 through out the hot spell here in BC. My beloved Tri has lost all it's colour and brown algae has now grown on most of the tips. As I performed the removal ceremony I noticed there was some pink down by the base. Now the arc was never pink so I'm not sure if this is life or not. there are zero polyps and zero colour on the tips.

Here is a pic