I have this Candy cane coral that is happy during the day but seems to be irritated after lights out. It would open up after dark and send it’s tentacles out and feed. But since maybe mid December it has swiveled up at night. Nothing has changed and the water parameters have been stable. At the end of November I switched lights over to a extra AI Vega light we had. The corals really perked up when the lights were changed. The tank is a backup/emergency 44 gal tank in the garage. The water parameters have been stable at 1.026Sag, 430Ca, 1400Mag, 8kh, 0Po&No, 8Ph, 80temp. The light come on at 7am peak from 12pm-4pm and lights out at 9pm. The 3 blues are at 80%, whites 50%, green 25% and reds at 15%.