My coral has turned red

[bjtrapjr]

This is my only peeve of hard coral in my tank is been in there for about 6 months when it started out it was green. About 2 months ago it started getting red spots and now it looks like this.

 

[Sugar Magnolia]

That's a dead coral skeleton with cyano starting to grow on it.

 

[bjtrapjr]

So the coral is dead should I remove it or is the cyano ok to leave in the tank

 

[bjtrapjr]

Disregard last question. I am really new to the hobby

 

[Sk8r]

Cyano happens in every tank. Use it as part of the rock structure. Imitate my water reading in my sig line, and get some tests and supplements to be sure it stays on those marks. THat is a stony coral you bought, which requires high lighting and high calcium levels---not rocket science to maintain, if you have the test kits. You need the test and supplement for alkalinity; calcium; magnesium. And read the sticky post about water chemistry.
Also if a coral skeleton is in good water, just occasionally and with some species, there will be a little live coral deep in the old skeleton that will try to break out and regrow: particularly true of hammer and plate corals. So never toss a dead coral, just use it as rockwork.