Let's talk about Harlequin shrimp

<a href=showthread.php?s=&postid=15267145#post15267145 target=_blank>Originally posted</a> by E.intheC
pulp, those are beauties! Do they come out a lot, or do they hide?

Thanks these are my reef Romeo & Juliet! When I first got them they were very shy and only came out when they were hungry.
Now they seem more outgoing and willing to come out in the open a few times a day.

As for the comments on how much they eat, in my experience they are ravenous! Its incredible they will eat a star that is way heavier they they are in a matter of days.
 
I keep ample numbers of Choclate Chips in my clownfish system and just grab one when its feeding time. The Astrias crawl up the top of the glass in the tanks I have Harlequins in so if I see them I just run my algae magnet by them and hope that the shrimp find them before they crawl up again.
 
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Mine eventually died when I couldn't get any choco-stars for too long.

Having a second tank to keep stars in and just feed an arm would be a good idea.
 
I originally bout a breding pair at a LFS about 4 months ago, I also had asterina star outbreak in my tank, in a bout a month they had my 120 cleaned up, only ones still around were in my overflows and sump, id pull them out and the harleys would take them off my finger to eat, I buy a choco star at the LFS about twice a month for them to eat, this is in a reef tank also, and dont worry if you just drop the star in front of them it wont do any damage to your coral, they wont let him get far, the star would climb around some, but they rode him the whole time and would flip him over and make short work of him, mine molt about once a month now, and she lays eggs often to.These are awesome creatures to have and watch, unfortunately their diet is paticular and if you cant stomach feeding them what they require I would pass.
 
i think i know the answer to my question, but i hope im wrong.

so i have alot of asterina stars and was thinking of getting some harlequins for my tank, BUT i have a very nice, rather large serpent star in my tank. so the question is, will the shrimp eat my serpent star?
 
if u havn't read this yet it has a lot of good info
http://www.chucksaddiction.com/harlequinshrimp.html

and for all the people complaining about the whole chopping a leg off a chocolate chip star, do u think the harlequin kills the star fish firtst if u give it a whole one.... NO. its alive for days until it finally dies from the shrimp the center part of the star.
*and im not trying to trash talk at all, at least the chocolate chip star seems to have a longer better life by rotating stars for legs then giving it to the shrimp which probably wont eat the entire star before it starts to rot.
 
the chances of a harlequin eating a serpent star are slim. serpents move to fast for a harlequin and would be much to hard to tangle with to start eating it
 
I've had mine for about 9 months now.

It destroyed a 3yr old Asterina colony within about a month, so don't expect them to feed off Asterina's for all that long.

Gets fed a CC star every few weeks or so.

Fantastic addition to my tank.

Harly.jpg
 
<a href=showthread.php?s=&postid=15499778#post15499778 target=_blank>Originally posted</a> by phish guy
i think i know the answer to my question, but i hope im wrong.

so i have alot of asterina stars and was thinking of getting some harlequins for my tank, BUT i have a very nice, rather large serpent star in my tank. so the question is, will the shrimp eat my serpent star?

Hey Phish guy glad too see a fimilar face here!

I have 2 bristol stars in my 65 corner with my harlequins and they have been in that tank since I adopted the stars last Oct and they have been able to avoid any har by my Harlequins thus far. They are just too fast and the Harlequins would need a team of shrimp too keep them fliped over.

The longest my Harlequins wnet without food was over 2 weeks nere 3, the Bristol stars went untouched so I must say that, in your case...Vegas is giving your serpent star a 6-1 odds that it will be just fine with a harlequin or two.
 
GKaquatic that was a very helpful, in depth article. i thought the shrimp would eat my serpent. but after reading that it makes sense that a large serpent/brittle star would be to quick and intimidating for a harlequin.

thanks everyone.
 
Sadly today i'm here to report bad news...

Yesterday I came home from work to find one of my harlequin shrimp has passed on. I can tell the diffrence bwteen a molt & a dead shimp so there is no mistakeing this for a molt.

Now I just passed 2 years with him and his mate is just fine. I'd wondering hwo long Harlequin shrimp live for?
I think I rember hearing its about 2-3years so I'm hoping that it was natural caused death. Tank perm are normal
ph 8.0
temp 78
amonia 0
Nitrate 0
nirite undetectable
phosphate is also 0

Last I highly doubt that he died of starvation. I have reacently tryed the freezing starfish arms and feeding them once a week so he would have had a good meal reacently unless 2 theorys might reveal a cause.

#1 does freezing starfish make them less nutricious to the shrimp?
#2 last 2 weeks they were fed a pink marbel star which is not one of their fav meals, is it possible that he declind a meal he didn't enjoy and chose to starve himself waiting for somthing better?

RIP little Harly!
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Has anyone who has a harlequin noticed a color loss (blue or purple spotting) over time? the next question would be is anyone feeding Linka stars? and if so what color?
 
that's a bummer pulp.. It could be a number of different things.

Did you notice any temp or salinity swings? I just lost 2 of my favorite shrimp to a temp spike.
 
It looks like it may have been natural. My temp hasn't had any drematic temp flux, and no salinity fluxs that I noticed.
I had noticed that the colour went lighter right before the end.
 
OK, back to the harlequins. Does anyone keep other shrimp like cleaners or fire shrimp with them?

If you keep chocolate chip stars in your fuge, will they eat pods or other beneficial populations?
 
will they eat brittle star fish? If you put a couple of brittle starts in your sump or fuge they would produce thousands of little starts i find tons of them just from one and if they made it to your display with your shrimp wouldn't that work?
 
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