Ok, so one of my friends gave me a sun coral frag that needs to be revived a little. She didn't want it anymore. She had a red slime algea out break in her tank not too long ago and just recently got rid of it all. Apparently the sun coral got covered in it and suffocated a bit. The polyps are sunk into the skeleton but I think there still is a possibility to bring it back. The is my first nps coral... Anything specifically I should do to help it along? I have it down near the bottom snugged along side of some LR to shade it a little. Not on the sandbed! Would love some advice, thanks.