flower
Well-Known Member
Originally Posted by reefkprZ
http:///forum/post/3183332
IMO
........
The polyp extension increase you have noticed can be for a quite a few reasons, not all of them good. let me just list some of the Possible explinations.
1. an increase in protiens and gelbstoff may be decreasing light penetration so polyps are expanding more to try and capture more light.
2. there may be more food stuff in the water for capture.
3. the build up of terpenoid solutions may be triggering aggressive reactions from your corals, an increase in polyp extension to attempt to combat the antagonist.
4. increased trace element levels from not having the skimmer remove them (yes skimmers remove trace and major elements some more than others, this would only apply if you have done a water change while running skimmerless)
5. maybe when you looked into your tank at night you just caught the corals at the right time, many SPS/lps extend at night to catch various zooplankton that only comes out at night. some only extend for short periods of time and it is easy to miss the extension period.
I have a cabbage coral. It stays looking nice for about a week, and then it looks like crap for about two days to a week. All the rest of the coral in the tank stays looking healthy and good. After reading the above quote in another thread, I wanted to ask folks what they think may be this particular corals problem.
This has been going on for the last year with this coral. I thought it was an alkalinity problem, which affected my PH. I corrected my Alk. and got the PH stabilized. And I thought I had the problem under control…then it curled up again for two days…today it is beautiful, but has a few leaves looking bad in the back of it...