Thoughts on SPS polyp extension..

[PoonTang]

I had the same problem. Fought it for months and months and tried everything from additives to new salts to massive water changes. It turned out to be a tiny little yellow coral goby whom I had never ever seen nip at a coral. But within a week of him being moved to the nano tank my polyps came back.

[Haloreef]

I had massive extention in most of my Sps colonies for a long time and then they just stopped! I tried every thing and finaly narrowed it down to a small voltage leak. I spent 14 bucks on a Rid Volt and within hours the extention was back!
It could be different problem for you but only $14 dollars out of pocket to try.
Keith.

[Aquattro]

Keith, not a bad idea. I just browsed the tank and noticed that some pieces do have good PE, especially a newly mounted pink lemonade. Pocci colonies all have great extension, as do the birdnests. But some colonies have nothing at all. For 14 bucks, I'll try grounding the tank.

[Delphinus]

Interested to hear the result of that.. Tagging along.

Haven't seen a whole lot of reefs in the wild but the ones I have seen, have all been in the daytime, and I don't ever remember thinking "Boy the polyp extension on these acros is not very good. I wonder if it's better at night time." Everything I've ever seen has all had PE to some degree, acros, porites, etc and eieio, but that said I've never seen the shagginess of a typical prostata or milli. So whether that's because maybe I never saw a prostata or milli where I've been, or if that's just not a natural occurrence, I can't say..

[Aquattro]

Tony, the wild milliporas I've seen didn't appear to be super fuzzy like we see them in tanks, if I recall. I wasn't paying a lot of attention to PE, more the size of some of the wild colonies!

But in my tank, for instance, my abrolhosensis isn't the typical bushy stick you normally see, you can actually see the body of the coral. The first three months, you couldn't tell if it was one branch or three!
The grounding probe idea has merit, and they're 12 bucks locally. I'll try that tomorrow.

[BlueTang<3]

The reason i think its potassium is after i dose k balance in the tank the pe is wild might be similar to after feeding the tank tho and the corals are just trying to absorb as much as possible.

[fishytime]

do you feed any kinds of coral type food?

[Aquattro]

Originally Posted by BlueTang<3

The reason i think its potassium is after i dose k balance in the tank the pe is wild might be similar to after feeding the tank tho and the corals are just trying to absorb as much as possible.

Hmm, might give that a try.