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This is the SPS forum, right?Have you ever looked at a polyp's anatomy? Its primarily just a mouth and stomach. I guess one could make the argument that they are vestigial, I don't think that's likely. I would just be interested to see if they perform eating similar to a sponge. Do they pump water into their polyp then out? Or do the food particles just adhere to the tentacles and through osmosis go to their stomachs?
We know. It’s hit or miss if it survives even then.For those of you who say your corals show polyp extension but have stn or rtn,
The part that has polyp extension is healthy. Frag it before the rtn or stn spreads.
Here are some instances where excessive PE is bad... High ammonia presence and the coral has to respirate more than normal. The zoox is unhealthy and not doing its job with the lights on. Water has low oxygen level. It could mean plenty of good things too.
No PE could just mean that you have a fish or invert that likes to pick on the corals. It could also mean that all kind of parameters are out of whack.
In any case, PE does not really mean much. Just look for changes from day to day... if a typically hairy coral all of a sudden has no polyps out, then look into it. If all of your SPS have polyps out to the max, then also look for some bad stuff like maybe the protein skimmer is not bubbling, or something has died and you have a bit more ammonia than normal.
Don't get it.I voted no based on this healthy bleaching Pink Floyd frag that didn’t like the shipping!
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I was joking. The polyps were out while it was bleaching so I voted no.Don't get it.
I use to think that PE was a good indicator of health but I am not sure now. I still look for it on my healthy sps, but feel it is irrelevant with newly shipped frags or tissue necrosis. It was noted above that the portions of the sps that had PE and were not necrosed could be fragged because they are "healthy", but in my experience there is a slim chance of survival, and it might be better to just blow off the necrosed tissue and give them a stable/not stressful environment (lower lights) to maximize the chance.Don't get it.
Thanks - I read it the wrong way lolI use to think that PE was a good indicator of health but I am not sure now. I still look for it on my healthy sps, but feel it is irrelevant with newly shipped frags or tissue necrosis. It was noted above that the portions of the sps that had PE and were not necrosed could be fragged because they are "healthy", but in my experience there is a slim chance of survival, and it might be better to just blow off the necrosed tissue and give them a stable/not stressful environment (lower lights) to maximize the chance.

It was poorly written. I tend to rush on forums and not proof reed. ADAH hard at work! lolThanks - I read it the wrong way lol![]()

