why does my gold torch close up like this

[rogergolf66]

every night it closes up the same before the lights go out. its about the same time everynight?

any ideas ?

 

[mcfa2403]

How much flow is on it? perhaps it retracts in to protect its flesh (just a thought)

 

[rogergolf66]

Why only at that time of day then? Same flow all day. It is open again now. It does this around 7 every night but lights r still on.

 

[EnderTurtle]

Mine use to do that but it would expel zoxanthelle just before retracting. Too much light i think.

 

[rogergolf66]

Mine use to do that but it would expel zoxanthelle just before retracting. Too much light i think.

That's a possibility it sits at about 700PAR

End of day too

 

[mcfa2403]

I misunderstood your original post, I thought you were saying that it stayed this way all night. The euphyllia of mine that are in higher flow areas close up more tightly at night as they no longer are undergoing photosynthesis and have no need for staying open and therefore can afford to retract further. Just because the lights are on doesn't mean the coral are still in their photoperiod (~8 hours in a 24 hour period). Anyways that was what I was referencing sorry it did not apply to your situation.

As for the lighting it is possible as gold torches IME seem to do better under lower light then my green euphyllia. I have my gold torch about 24" from my kessil while my todds torch is about 16". When I attempted to move the gold closer it appeared visibly stressed.