Aquabacs' Cadlights Artisan 50 Azooxanthellae Tank build

Thanks...I'll keep you posted. I tried to get a better close up of the "patterned" growths in the last two pics, but my camera isn't that good:
 

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Kreeger I got mine from LA/DD. They aren't offered for sale too often though. I had to watch and wait for the specimens I obtained. I don't know of an online site that offers them "regularly". Since they are NPC, and hard to keep they aren't in demand, so retailers don't stock them that often. When they are offered for sale they tend to go quick.
 
So have you guys looked at it at night to see if the feeders might come out then? Any signs of deterioration?
 
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Could be wrong, but if you look in the center of the picture, there is a small section of the coral that looks almost patterned. Within that pattern, there are very small, hair like lines slightly coming out. What do you think?

Mike

Yep, that is what I get, I believe. With my eye it looks like coral slime. Hmmmm that could be a good sign. Maybe that is how it feeds. Now to figure out what it is reacting to. You and your camera can really help out with that. Boy would it be cool to break the code of these babies. Can you imagine a tank full of all different colors. OK, OK I am getting ahead of myself but man would that be amazing. In order to get the reaction I have to blend it up. It is really a cloud of food. No big pieces at all.
 
Yeah, I was just wondering if a site had one today is all. I don't check the websites enough to get the hot corals. I am lucky to have two stores within 30minutes of me that stock some non photo though.
I will enjoy seeing your guys corals until I land one of my own. ;)
 
So have you guys looked at it at night to see if the feeders might come out then? Any signs of deterioration?

I don't see anything at night, but no deterioration. My color has improved as you can see by my pictures in the thread I posted. It is kind of two toned now. In the beginning, it was yellow now it is a yellow orange. You might check with reef monger. He got me mine. I don't know if he ships but I'm sure he would.

http://www.reefcentral.com/forums/showthread.php?p=16848799
 
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ok that looks interesting. you think the patterned bit is anything to do with feeding?

It looks like a traditional mouth and feeders in a zoa or something. I would have to say yes. That would explain why my blended food gets a reaction as those are pretty small mouths.
 
So have you guys looked at it at night to see if the feeders might come out then? Any signs of deterioration?

Yes I have looked at mine at night (various hours), and still I don't see the gasterozooids expanded. But I can't watch every hour of the night. It has me worried...cause I want to feed it. I see no deterioration in the coral so far. I don't see the "slime" coat others have experienced (probably bacterial blooms growing on the branches).
 

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Guys as far as the "patterned" parts of these corals go...(entertain this idea for a minute)...do you think it could be stress related? Maybe a sort of "polyp bail out" or reproduction response from the coral?
 
Id like to order one, what site can I get one from today?

I will let you know when LA has them again.They also occasionally have them in their Collector's Corner. You dont get to see what the exact coral looks like but it does come with LA guarantee (unless noted).

Mike
 
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Well, I have been direct feeding it on and off for a few hours now. I am going to stop for today. If you notice the top of the branch it spotty. You can follow almost a line down the entire coral of these spots. Also there are a few more spots on the coral like the other picture I posted. I will check back in a few hours to see if there is any changes.

Mike
 
Yes I have looked at mine at night (various hours), and still I don't see the gasterozooids expanded. But I can't watch every hour of the night. It has me worried...cause I want to feed it. I see no deterioration in the coral so far. I don't see the "slime" coat others have experienced (probably bacterial blooms growing on the branches).

I cant wach every hour of the night but if the gasterozooids do "expand" I will do my best to get a picture of it. It is too soo to tell if the pattern on the coral is from stress, feeding or something else. I am sure we will make some headway in figuring out more about this coral and its behaviors in a closed system.
 
As A few of us have been starting to get more interested in Distichopora I figure I would post up some infor from Arkive.org

Description
Lace corals form ornate tree-like structures, with all the flattened, blunt-ended branches growing in one plane. These fan-like corals are remarkable for their bright colours (2), including violet, red, orange, and yellow, and grow up to 25 cm tall (3). The colour is deposited within the limestone skeleton and remains even after the animal tissue is gone, unlike reef-building corals which have white skeletons and the only colour is found in the living tissue (4)

Habitat
Distichopora corals occur in temperate as well as tropical waters, and also occur at abyssal depths. Commonly found in caves and under overhangs in shallow reef environments, and in crevices, under ledges and in caverns (2).

Biology
Unlike many coral species, lace corals do not have the symbiotic algae zooxanthellae living within the coral tissue; they are azooxanthellate (2). They are therefore not dependent on light and thus can live where the reef-building corals, dependent on photosynthetic algae, can not.

Lace corals are hydrozoans, and thus have different type of polyps with different functions than anthozoan corals. The polyps of hydrozoans are near microscopic size and are mostly imbedded in the skeleton, connected by a network of minute canals. All that is visible on the smooth surface are pores of two sizes; gastropores and dactylopores. The rows of gastropores flanked by one of two rows of dactylopores are diagnostic of the genus (3). Dactylopores house long fine hairs that protrude from the skeleton. The hairs possess clusters of stinging cells (nematocysts) that can inflict stings on human skin. These hairs capture prey, which is engulfed by gastrozooids, or feeding polyps, situated within the gastropores (2).

Reproduction in lace corals is more complex than in reef-building corals. The polyps reproduce asexually, producing jellyfish-like medusae, which are released into the water from special cup-like structures known as ampullae. The medusae contain the reproductive organs, which release eggs and sperm into the water. Fertilised eggs develop into free-swimming larvae that will eventually settle on the substrate and form new colonies. Lace corals can also reproduce asexually by fragmentation (5) (6).



Glossary

Asexually: relating to asexual reproduction: reproduction that does not involve the formation of sex cells, such as sperm and eggs. Asexual reproduction only involves one parent, and all the offspring produced by asexual reproduction are identical to one another.

Colonies: relating to corals: corals composed of numerous genetically identical individuals (also referred to as zooids or polyps), which are produced by budding and remain physiologically connected.
Fragmentation: fragmentation is a form of asexual reproduction where a new organism grows from a fragment of the parent. Each fragment develops into a mature, fully grown individual.

Larvae: relating to corals: the stages of development before settlement on the reef. Larvae are typically very different in appearance to adults; they are able to feed and move around but usually are unable to reproduce.
Photosynthetic: plants that carry out a metabolic process in which carbon dioxide is broken down, using energy from sunlight absorbed by the green pigment chlorophyll. Organic compounds are produced and oxygen is given off as a by-product.

Polyps: typically sedentary soft-bodied component of Cnidaria (corals, sea pens etc), which comprise of a trunk that is fixed at the base; the mouth is placed at the opposite end of the trunk, and is surrounded by tentacles.

Symbiotic: describing a close relationship between two organisms. This term usually refers to a relationship that benefits both organisms.



References

1.CITES (October, 2009)
http://www.cites.org

2.Veron, J.E.N. (2000) Corals of the World. Vol. 3. Australian Marine Science Institute, Townsville, Australia.

3.Lindner, A., Cairns, S.D. and Guzman, H.M. (2004) Distichopora robusta sp. nov., the first shallow-water stylasterid (Cnidaria: Hydrozoa: Stylasteridae) from the tropical eastern Pacific. Journal of the Marine Biological Association of the UK, 84: 943 - 947.

4.Waikïkï Aquarium Education Department (July, 2007)
http://www.waquarium.org/MLP/search/sp_lace_coral.html

5.Borneman, E.H. (2001) Aquarium corals; Selection, Husbandry and Natural History. T.F.H. Publications, New Jersey, USA.

6.Wood, E.M. (1983) Reef corals of the world: biology and field guide. T.F.H. Publications, New Jersey, USA.

7.Wilkinson, C. (2004) Status of Coral Reefs of the World. Australian Institute of Marine Science, Townsville, Australia.

8.Green, E. and Shirley, F. (1999) The Global Trade in Corals. World Conservation Press, Cambridge, UK.
 
Lace corals are hydrozoans, and thus have different type of polyps with different functions than anthozoan corals. The polyps of hydrozoans are near microscopic size and are mostly imbedded in the skeleton, connected by a network of minute canals. All that is visible on the smooth surface are pores of two sizes; gastropores and dactylopores. The rows of gastropores flanked by one of two rows of dactylopores are diagnostic of the genus (3). Dactylopores house long fine hairs that protrude from the skeleton. The hairs possess clusters of stinging cells (nematocysts) that can inflict stings on human skin. These hairs capture prey, which is engulfed by gastrozooids, or feeding polyps, situated within the gastropores (2).

Interesting. Fits with what we are seeing in your pictures.
 
Interesting. Fits with what we are seeing in your pictures.

When I read that, it was the first thing that came to my mind. We shall see how it pans out. Today, I was working on a few different was to photograph it. I was able to take this picture using the aquariums overhead light with the addition of my trusty maglight.

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Mike
 
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