Thoughts on SPS polyp extension..

[Aquattro]

Originally Posted by daniella3d

I guess my tank must not be normal.

No, it seems sort of normal to be out, depends on the tank. Lots of great tanks have full PE, and lots don't.

For me, adding K has produced a bit more PE, but nothing substantial. I do have perhaps 12 colonies that have full PE, but another 80 that don't. Not sure why.
I added some brine shrimp today to see if that provoked more response, nope. I feed mysis daily, no change. I've just modified my zeo dosing, I may have been adding too much, so perhaps the corals aren't hungry. I have nothing picking at them, so it's not predation.
Levels are all really good and stable. alk is a bit high for a zeo system, so perhaps that affects it, since the water change that seemed to set this off did raise my alk substantially. I'm trying to get it back down to 7dKh and see if that changes anything.
Again, not sure if PE during the day is a good thing or a bad thing, I do have typical PE at night, corals are colored great, and growing well, so I really don't have a problem, but they do look prettier when extended.