is my Blue Linkia expelling its insides? (pic included)

Draven

New member
Something tells me my linkia no longer wants to be a team player.........


IMG_6873.jpg
 
Ours did that about two months ago. It then went into hiding for awhile, but is out and about now :)

He was really delflated for awhile, and I thought for sure it was a goner.

Pete
 
sea stars (please let's not call them starfish... they can't swim and don't have gills) can eat by everting their stomach out of their oral opening... that's how it consumes an oyster, for example... it surrounds the oyster with its arms, waits for it to crack open just a bit... and the slips its stomach inside the oyster and starts secreting digestive juices... yummy....

that might be what you saw... how is it now?
 
it could be doing that,but i've seen (sea stars lol) cover things with their stomaches to eat before and it did'nt look much like that.
 
Linkas are temperate water animals and not reef dwellers by nature.
Your gonna see it do all kinds of funky stuf because a reef is not its natural "full time" enviorment ( eventualy including it melting away to its death, which is what I believe yours is in the process of doing. Those are rows of its "suction cups" not its stomache)
Ideal water temps for linka's are from as cold as 68 deg F. to 76 deg. F.
Thats why they dont do well in reefs.
I dont think they should even be sold labeled "reef safe" personaly.
Because they may not harm the reef but the temperatures of our captive reefs will harm them in the long run.
 
First it would be nice if the thread starter would check back, and let us know whats happening with it. As far as I can tell draven hasnt been here since April.

Not sure what your reference is monkey bone, in Ron Shimeks Marine Invertebrates he makes no mention of this as a temperate species, and does go on to say that the blue linkia is " one of the few that may persist in reef aquariums". He also states that it reproduces asexually when one arm or ray pulls itself away from the central disc and walks away; the disc heals and grows a new ray, while the ray grows a new body and arms. I think this is what may be happening here, but have no way of knowing until draven lets us know.
 
Thoughs arn't the gonads, they look like the digestive glands (the gonads are not directly connected to the stomach).

33-38-SeaStarAnatomy-L.jpg


You can see that the digestive glands in the above picture look like what the sea star has expelled through its mouth.
 
Re: is my Blue Linkia expelling its insides? (pic included)

<a href=showthread.php?s=&postid=6955128#post6955128 target=_blank>Originally posted</a> by Draven
Something tells me my linkia no longer wants to be a team player.........


IMG_6873.jpg
did it survived? after over a year I think mine it's looking like this. I think it's dying :(
 
linkia usually die in the home aquarium due to starvation (u cant feed them directly and no one knows what they eat) unless ur tank is a super mature 150+ gallon.
 
I feed my Linckia couple of times. I just put a small piece of shrimp under its disc. After more than 6 months, I still can’t figure out the frequent of feeding, I feed it every month but sometimes it didn’t want to eat for 2 months.

I captured feeding moment of my Linckia (sorry for the low quality images :p )
Aqua005.jpg


Aqua004.jpg
 
In this case, it's probably not a food issue; sea stars are extremely sensitive creatures, especially where temperature, salinity or pH shifts are involved. Any slight change can sometimes disrupt their immune function dramatically. Temperature rises can be particularly difficult to handle. As they lack a specific immune system, they instead have a chemical-based system, and many of the active enzymes are heat sensitive. A rise of only a few degrees can cause sever difficulty in fighting infections, often caused by Vibrio species and their kin. Treating the seastar in a bath of tetracycline, or oxytetracycline has reversed the necrosis, but once you have tube feet coming out of the ambulacral groove, it's pretty far gone. Hope this helps, good luck!
 
<a href=showthread.php?s=&postid=7712088#post7712088 target=_blank>Originally posted</a> by ziggy222
it could be doing that,but i've seen (sea stars lol) cover things with their stomaches to eat before and it did'nt look much like that.

I agree. I've seen a blue linkia feeding this way on a limpet. It kinda looked like a somewhat transparent beige balloon looking thing. I thought it was dying, and went to remove it. It promptly retracted it's stomach back into itself. Then I saw the limpet.

Oh, and they are not temperate. They are tropical. I saw them on PBS or Discovery...lots of them, in shallow, muddy, alge covered flats.

I think people don't feed theirs enough, thinking it eats detritus only.
 
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