I bought some LR off a guy on Craigslist for $20. When I went to pick it up all the rocks were sitting in a bucket with no water. Apparently they had been for a couple days. Additionally they were sitting outside (it was 45 below for most of that time). I assumed it was all dead rock at that point so I left it in my garage for another week then washed it all in fresh water to blast off any dead crap. then i put it in a big plastic tub with a protein skimmer for a week the SG was 1.023. I never had any kind of cycle in the tub so i put it in my tank. No cycle in my tank either other than a slight nitrate spike and a massive diatom bloom. all of that was about a month ago. the bloom is finally gone and I am seeing tons of life. Pods and coralline, feather dusters, tons of stuff. I noticed this thing yesterday, is it a coral? is it dead?