Stressed or Dying Corals?

[CoralineCori]

Well, things are slowly...very slowly starting spring back..however I see signs of cyano returning. It's very little and barely there but hubby and I can see it. Hubby was scared that the treatment completely stripped the tank of nutrients because all algae had gone including whatever was stuck on filter return, skimmer intake. I would imagine if we have a tiny bit of nitrate in there, that there is still some beneficial nutrients/algae? Anyways Gonio is reaching out a bit more, everyday I get more red polyps opening on the zoa and although the xenias are still shrivelled, the polyps have turned a light pink again...still not opening up but better than they were for sure. My fingers are still crossed lol.