Wasn't sure exactly what the procedure was for submitting TFF index posts and I forgot about it until I had to move a bunch of corallis to my propagation bin today lol. Anyway, I wanted to post up what I had for critique/info addition/etc. I have only seen 3 types of reproduction from them, and there's little information in the literature about them, with almost none on reproduction. All that is my own observations/experience seen in my own tanks. I'm not sure if they can do the anemone thing of forming a new individual inside and then spitting it out. I would think they probably don't, but wanted to see if anyone else had observed it in those guys. Also, I only covered the one species that I have. There are a bunch of very similar Pseudocorynactis from elsewhere (such as orange ball and green ball corallimorphs), but I have no direct experience with them.

I have two sources to cite for really general info I used early-on towards IDing and such was from the Borneman "Corals" book and also "Sea Anemones as a Hobby" by U. Erich Friese. If not much else, those books are good for pictures to compare against lol. There's not a whole lot on behavior, reproduction, etc. in either of those books though.

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Pseudocorynactis caribbeorum

Common name(s): white ball corallimorph.

Family: Corallimorphidae.

Distribution: Caribbean.

Temperament: semi-aggressive predator, not compatible with small fish.

Water flow: low to moderate.

Light: not mandatory if regularly fed, but moderate lighting is ideal for best growth.

Care: White ball corallimorphs are related to mushroom corals/anemones and have several concentric rings of long tentacles tipped with white balls that house nematocysts. These corallimorphs prefer placement low in the tank, often on substrate or on rocks near the substrate. They cannot rely on lighting for a food, and require target feeding frequently for good growth and bright color. A well-fed, healthy white ball corallimorph will have a bright orange to pink body with clear tentacles. Malnourished individuals and those deprived completely of light will loose their color and shrink in size over time. Regardless of initial placement, white ball corallimorphs will roam the tank searching for an ideal site to attach to. They will generally not accept smooth surfaces and prefer to be located on rough rubble. White ball corallimorphs have nocturnal tendencies, although repeated feeding with the light on will cause them to be more open during the day. However, they will rarely extend fully until the lights are turned out, at which point they may extend to double their daytime size.

Feeding: white ball corallimorphs will attempt to eat anything that sticks to them, so feeding must be done with care to avoid presenting them with objects that are sharp, inedible, or too large. Acceptable foods range in size from zooplankton to meaty chunks roughly 1/4 the size of the corallimorph's disk. Larger food may be accepted initially, but the corallimorph may regurgitate it later. For good growth, feeding twice per week with meaty foods is best.

Propagation: healthy white ball corallimorphs may reproduce on their own, given enough space and food. They have three main forms of reproduction that can be observed in the aquarium: asexually by pinching off pieces of foot tissue, asexually by dividing down the middle of the disk (more common in large individuals), and sexually by releasing eggs/sperm into the water. The first form of reproduction is most common in the aquarium, with the second only occurring in large or injured individuals. The third is a rare event, and corallimorphs can be seen releasing a smoky substance from the oral disk. If the actual spawning itself is missed, it is evidenced by the sudden appearance of hundreds of extremely small new corallimorphs on the tank walls, rocks, etc. When this type of spawning occurs, most of the new corallimorphs do not survive to adult size although good conditions can improve the survival rate. Surviving offspring that are higher in the tank will generally move down to the substrate. To propagate corallimorphs by hand, it is best to divide the individual down the middle to produce two equally-sized specimens or remove a piece of basal tissue as would occur in the first two types of reproduction. Manual propagation should be done on larger individuals, as it is quite stressful on the animal, which will generally shrink back and continue to decrease in size until healed and ready to accept food again. This type of propagation can also be used to control the size of individual corallimorphs if they become large enough to pose a threat to other tank inhabitants.

Other comments: these corallimorphs should not be kept with fish smaller than 2" (5cm). White ball corallimorphs can easily take unsuspecting small fish such as clown gobies, since the tips of their tentacles are extremely sticky and have a reasonable sting. One should also avoid touching a white ball corallimorph by hand or with any other object that isn't food, as the corallimorph can be injured if the tentacles have adhered to the object and the object is pulled away too quickly.

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And I dug up a pic that might work...had forgotten about it. Lemme know if its not suitable. If someone else has a less fuzzy pic they'd be willing to share that would be great as well.

Great article Donya, thanks. In the future, just post in the Index section as you would normally. The post shows up as invisible and a mod will look at, edit, and approve the topic. Once approved, the post becomes visible. Usually these posts are caught quickly, but if you don't see your article show up within a couple days, feel free to PM any moderator and ask about it

Edit: If you could copy your text and post it in the Index section that's be great. I could add it myself but then it would look like I wrote the article and you deserve the credit for that . So just post it up in there and it'll get approved

Thanks Ski!

All set Donya, good writing