Davis Family Reef Aquarium - Zoanthid Davis Family Reef Aquarium

 
 



 
 




Zoanthids

 

Renaming Our Corals

"Zoanthid, Notice that this word contains only a single "o." A zoo is a place where animals are kept on display, whereas zo-(rhymes with toe) is a prefix meaning "animal." This is a simple point, but I can't overstate how it grates on the ears of folks who know better. My advice in any endeavor would be to know the correct pronunciations of its words; otherwise we seem less-informed than we truly are."

"geekdafied" - 3Reef
 


 

 
 

 

Zoanthid Names

(zoaid.com)



Class: Anthozoa
Subclass: Zoantharia
Order: Zoanthidea
Family: Zoanthidae
Genus: Zoanthus, Palythoa, Protopalythoa, Isaurus, Sphenopus, Parazoanthus, Epizoanthus, Acrozoanthus
common species: Z. sociatus, pulchellus, pacificus, mantoni. vietnamensis, coppingeri, and others
P. grandis, caribaeorum, complanata, variabilis, grandiflora, mammillosa, toxica, and others P. mutuki, and others P. swiftii, parasiticus, axinellae, gracilis, dichroicus, and others I. tuberculatus, and others S. marsupialis, and others
Common names: sea mats, button polyps, colonial polyps, colonial anemones



Zoanthids (order Zoantharia) are an order of cnidarians commonly found in coral reefs, the deep sea, and many other marine environments around the world. These animals come in a variety of different colonizing formations and in numerous colors. They can be found as individual polyps, attached by a fleshy stolon or a mat that can be created from small pieces of sediment, sand and rock. The term "zoanthid" refers to all animals within this order Zoantharia, and should not be confused with "Zoanthus", which is one genus within Zoantharia.

Zoanthids can be distinguished from other colonial anthozoans and soft coral by their characteristic of incorporating sand and other small pieces of material into their tissue to help make their structure. All known zoanthids have this unique feature, excepting the Family Zoanthidae. While the most well-known zoanthids are the zooxanthellate genera found in tropical and sub-tropical waters (primarily Zoanthus and Palythoa), many other species and genera exist, some still relatively unknown to science.
 

Wikipedia


 
 

 
Diet

Zoanthids feed both by photosynthesis, aided by the zooxanthellae they contain, and by capturing plankton and particulate matter. Although photosynthesis aids in their nutrition, even species that do not actively capture plankton cannot live through photosynthesis alone.[1] Zoanthis can eat meaty foods, such as lancefish, brine shrimp, krill and bloodworms.
 
Wikipedia

 






Palytoxin is an incredibly complex marine natural product containing 71 stereochemical elements. Palytoxin, isolated from soft coral (most notably, zoanthids), is considered to be one of the most toxic non-peptide substances known, second only to Maitotoxin.

Typical symptoms of palytoxin poisoning are angina-like chest pains, asthma-like breathing difficulties, tachycardia, unstable blood pressure, hemolysis (destruction of red blood cells), and an electrocardiogram showing an exaggerated T wave. The onset of symptoms is rapid, and death usually follows just minutes after.

 

Always wear gloves and protective glasses when handling these creatures!"






 
The Frugal Reefer (GARF)


 
Zoanthid Production (GARF)


Zoanthids are a great beginners coral. They are easy to propagate. These corals grow very well in new aquariums and they come in a wide range of colors. There are many varieties of Zoanthids. During our research at GARF we have brought many Zoanthids from the wild reef and each group has taken several months to acclimate to captivity.

During the first few months the wild colony does not grow very fast. After a period of about six months we notice that the individual Zoanthids start to reproduce and the colony starts to spread.



 
Misc Info

 
("Animal World")


In nature zoanthids are often found in turbid, high-nitrate areas in canals, harbors, intertidal areas and reefs. For this reason they are fairly tolerant of poor water quality high nitrates, phosphates an dissolved organics. They will not however do well if filamentous algae is allowed to grow as they can be smothered.

Compatibility: When it comes to placing zoanthids next to corallimorphs, (mushroom anemones), the zoanthids almost always lose. Always place these kinds of corals a good distance away from each other. One should also be aware that there are several fish species that will dine on zoanthids. These fish include the Raccoon Butterflyfish, Chaetodon lunula, which have been used recently to eat aiptasias


 
04-07-2008 12:50 PM



(Re: 3Reef Thread - "Help with Polyps" )

 


(3Reef Thread: Help With Polyps)
25 Reasons why your polyps won't expand.


1. You have a zoanthid eating worm.

2. Sundial snails. ( I've experienced this ) Zoo eating snails.


 

3. A fish that is nipping at them, there are several well documented cases of this. ( I've experienced this )

4. An invert doing the same. ( I've experienced this )

5. Unstable or fluctuating parameters.

6. Large Emerald Crabs or a Sally Lightfoot. Both can and will
consume, kill and cause polyp retraction. ( I've experienced this )

7. Sea Spiders. ( I've experienced this )

8. If shipped, the water was much too cold and you placed it directly into your tank without slowly drip acclimating them. Or, the inverse, the water was too warm.

9. Nudibranchs ( I've experienced this )

 
Click here to see the orignal image

10. Stray Voltage. ( I've experienced this )

11. Excessively high Iodine which would prove fatal.

12. Light shock

13. Polyps that were kept in PC or VHOs and then placed mid to high level under MH's without light acclimating them. Possible burning could also occur.
or
Polyps that were in maybe dual 175 SE Mh and then placed mid to high under 400 watt DE MH, will cause possible burning or a delayed expansion.

14. Other stinging corals.

15. Chemical warfare.

16. Overpowering current. ( I've experienced this )

17. Excessive collection of sediment. See post 1, 6 and 7 in the link below.

18. Nuisance algae around the polyps which will irritate them and prevent them from expanding. ( I've experienced this )

19. Temperamental, yes, they are, there may be nothing at all wrong, that simply don’t want to expand for that day.

20. Fungus

21. Bacterial infection. ( I've experienced this )

22. White lesions also referred to as Zoa Pox. ( I've experienced this )

23. Amphipods, which I have only witnessed eating sick, dead, dying, decaying polyps. Doesn’t mean they won’t eat perfectly healthy ones, I just haven’t witnessed it, some have.

24. Extreme hypo or hyper salinity

25. And the final reason may not be any of the reasons above. Why? Periodically, polyps will retract from days to 10 to 14 days, during which they will clean themselves externally. Then without any advanced notice, they will unfold like a flower or a summer’s morning.



 
(Zoanthid Predators, Irritaters, & Diseases)




PS. There are proactive measures that one can take to prevent or greatly reduce your chances of experiencing the above. Most notably...

1. Dipping
2. Close inspection
3. Quarantine your new purchases
4. Educating yourself on what to look for and recognize. I think a lack of knowledge is the one major contributors to most unfortunate experiences in reefing.

 

 

 



 

 
References:

The Sea Mats & Polyps That Are the Zoanthids - Webmedia

Zoanthid - Wikipedia

Zoanthids, Palythoa - Animal-World

Zoanthids Coral? Anemone? Both? Neither? by Eric Borneman

ZoaID.com! :: The definitive repository for named Zoanthids!  (Link provided by Amcarrig - 3Reef)