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  #1  
Old 04-29-2007, 04:20 AM
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G.Alexander G.Alexander 目前離線
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Default Asterina spp

Found those little starfish several times eating for sure the tissue of Pocilopora / Stylophora and Seriatopora corals.







They look identical to the grey / green ones they usually do not harm corals, however those orange ones do it for sure. Other corals where not affected, so far …

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Last edited by G.Alexander; 05-12-2007 at 12:58 AM.
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  #2  
Old 04-29-2007, 05:23 AM
doodie doodie 目前離線
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Hi Alexander,

I have had the same problems with these stars, but also with the larger of the green stars.

Check this thread out...
http://www.reefpark.net/forums/index...3225&hl=doodie

Thx

D
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  #3  
Old 04-29-2007, 05:51 AM
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G.Alexander G.Alexander 目前離線
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Thanks for the link Doodie.

Would you mind to post the pictures here also as you need to be a member to view them ?

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  #4  
Old 04-29-2007, 07:26 AM
doodie doodie 目前離線
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*Dec 4 2006, 02:15 PM originally posted on Reefpark.net*

Ok got home last night and saw another friggin starfish munchin on one of my frags. Got pics this time:

Starfish sucking on my frag :

*

Got a pair of tweezers and removed the starfish...look at the damage to the frag :



Frag eater next to 5p for size comparison:



Right, I have loads of these little starfish in my reef tank which seem to exclusively feed on algae especially coraline. For comparison I hooked out an algae eater and photographed it alongside the frag eater (the Frag eater is on the right of the pic):




You can definately see a difference in size and colour close up. From afar they do look like any other little algae eating starfish in my reef which is concerning.
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  #5  
Old 04-29-2007, 08:46 AM
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Now that's scary,as I have many of the white Asterinas but haven't seen any of the darker, larger ones on the corals Great pix's, btw.

Dave, is that frag a seriatopora?

Alexander, how much damage did they do? Thnx. Bob
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  #6  
Old 04-29-2007, 12:03 PM
doodie doodie 目前離線
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Quote:
Originally Posted by Aged Salt
Now that's scary,as I have many of the white Asterinas but haven't seen any of the darker, larger ones on the corals Great pix's, btw.

Dave, is that frag a seriatopora?

Alexander, how much damage did they do? Thnx. Bob
Hi Bob,

Yes it is, and I would just like to add that it has made a full recovery

I would advise that if you do have these in your tank, to watch them carefully. I have a hunch that these little algae eating starfish, when mature, change their feeding habits.

I have also noted that the population of these starfish depends on the amount of coraline in the tank. The less coraline, the less starfish. I have managed to reduce the population by manual removal and limiting coraline growth.

Best

David
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  #7  
Old 04-29-2007, 12:42 PM
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It seems I've noticed an increase population of these white asterinas after feeding FOE's?? Anyone else note this association? Bob
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  #8  
Old 04-30-2007, 02:21 AM
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Hi Bob, the damage was not much as I removed the starfish as soon as I have seen the damage. They seem not to hide at the daily light period which makes it easy to find them. He munched a area of about a finger nail until I removed him, this damage seemed to be done over night. As I have enough algae in the tank, I do not think eating the tissue was a act of desperation

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Last edited by G.Alexander; 05-12-2007 at 12:59 AM.
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  #9  
Old 06-23-2009, 08:23 PM
CrabShot CrabShot 目前離線
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I caught them munching my zoa



This should be my 1st post.. Hi to all
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  #10  
Old 06-24-2009, 04:55 AM
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Hi CrabShot



G.Alexander
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