Corals Pulling Polyps in

[kiwis]

I've had a few corals for a few months... Polyps out every day but since changing to a stronger light they're retracting them on and off a bit?

A major issue?
Adjusting

Unrelated?

Any ideas?

 

[SeaDweller]

I know with my HW, if the blues are run too high, the PE is reduced. When I reduce them, PE resumes. So if you coincidentally noticed it happening, why not try lowering the lights some?

 

[Jinko]

Depends on the species, sps tend to show better polyp extension during the night, less predators to nip at the polyps are more food for them to catch.

 

[kiwis]

I know with my HW, if the blues are run too high, the PE is reduced. When I reduce them, PE resumes. So if you coincidentally noticed it happening, why not try lowering the lights some?

HW and PE???

 

[homer1475]

HW = Home Wrecker

PE = Polyp extension

While my acros never have PE, I do have decent growth and color. I've been told even though I don't see my flame back angel nipping, it's probably the cause of 0 PE.