Pussey Coral

Over the last 2 weeks my pussey coral has deteriorated.
Im not sure as to why either.

All my other corals are doing really well and growing.

Here are my stats-
Ammonia - 0
Nitrite - 0
Nitrate - 10
Calcium - 520
Phosphate - 0
Kh - 9
Magnesium - 1400
S.G. - 1.025

The only thing I can think of as to why it has died it because of the heat that happend last week and it caused my tank to heat up to the high 80's. Could this have had anything to do with it?

So whats your thoughts as to whats happend?

As you can see, it has shrunk down to at least half it original size and has lost all colour too, its just white.

Yeah it may well have bleached. My tank also rised in temperature a couple of weeks ago and my Toadstool is slightly bleached and my anemone has lost its colour a bit, but its getting back to normal now Keep the temperature nice and cool and it should pick up

Hot temps can have disastrous effects on coral health. That's your likely culprit, sorry. Really all you can do is to keep water cool and clean and your fingers crossed.

If it dosent pirk up in a couple of days am I best to bin it then?

If it deflates and turns into jello, remove it