Tonight I pulled out what was left of my Colt coral. It looked as if it had gone beyond the point of recovery and was turning white. Indeed when I pulled it out it was getting a little oozy. Several months ago the Colt coral started to decline when I separated it from the glass and a rock so I could stabilize the rock my Green Slimer is on. It never recovered. In fact, looking back, that is about the time my tank started to decline. Could the stressed colt have been allelopathic and led to the decline of my SPS and my recent tank crash? On the bright side not all is lost with the Colt. A baby Colt is growing nearby in a spot where long ago I pulled a branch of the colt off the rock.