I’ve had a torch coral for about 6 mo. This weekend I noticed one of the heads isn’t opening up. The one head has been recessed for the past 2 days. My other coral is doing fine. My water parameters are all good except phosphates which are on the high side. Also - I‘ve been dosing Vibrant 1x / 2 weeks for minor Cyano. I’ve turned my flow down to see if that help with the torch. Any thoughts???