LPS closing up to 4 hours before lights out

[ReefDreamz]

My acans shrivel up and some torches start to retract daily about 3 to 4 hours before lights out, basically as soon as the lights start ramping down from peak intensity. Is that normal?

I run 2 a500xs and 4 reefbrite strips. The kessils ramp from 0 to 32% over 5 hours, stay at 32% for 2 hrs then ramp down from 32 to 0 over 5 hrs. So thats a 12 hour photo period. The reefbrite bars run at 50% for 11 hours, they turn on 30 min after the kessils and turn off 30 min before the kessils. My acans and some torches will start to close up daily like 3 to 4 hours before lights out. How can I get them to stay open longer or should I even try to?

Kessil schedule:

Par numbers at peak intensity:

Midday:

 

[Dave1993]

normal mine do it too

 

[GrimReefer51]

I'm having the same problem. My par values are around the same. Are your phosphates low? How long are you running your lights?
Also, your tank is amazing. Great work on scape.

 

[MarsReefer]

Mine do this too, but only some of them. Others stay open all the time. Have tried a bunch of different parameters, par levels, feedings, etc. I think some corals are just lazier than others.

I have two torches right next to each other. One closes up 5 times a day at random times, one stays open 24/7.

If you figure it out i'd love to know the answer.