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#1
12/07/2007, 01:23 AM
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Long Spiny Urchin
I've recently introduced a long spiny urchin (1st experience with these) to my reef aquarium about two weeks ago. It has taken up residence at the top corner of the tank during the day (away from any cover) and does not move from it's position there. I have relocated it twice to the live rock, thinking it will take cover from the light and it makes it's way back up to one of the top corners again. Does anyone have any thoughts on this unusual behaviour, or is this, perhaps, normal?
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#2
12/07/2007, 07:06 AM
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urchins are not reef safe. i would get rid of it, they destroy everything.
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#3
12/07/2007, 02:52 PM
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I had a black long spine that came in as a hitchhiker on some LR. It was so good at hiding, that I never noticed it until over a year after I got the LR, at which point the spines were about 6" long. After that it became much bolder and was sometimes out & about during the day.
Mine was fine in my 75g. Occasionally I noticed small trails of white in my coralline where it had snacked, but it never knocked anything over (having said that, my LR was Thorited together, and I was always very careful to mount corals securely). That's weird that it likes the corner of the tank, but since you've already tried relocating it twice, I would just leave it where it's apparently happy.... HTH, -R |
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#4
12/07/2007, 08:58 PM
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My seven urchins seem pretty safe. It sounds like yours wants to be there - they can get around pretty fast when they want to, so yours probably wants to be where it is. If you're worried about it getting food, you might drape a small piece of nori on it. Mine seem to like it when the algae comes in big pieces.
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#5
12/08/2007, 08:33 PM
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They typically spend the daylight hours in one place, often the same place every day. Night time is when they move around and do their thing
 The long spines are one of the more reef safe urchins, normally the worst they do is knock over unsecured frags.
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Bill "LOL, well I have no brain apparently. " - dc (Debi) |
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#6
12/08/2007, 08:52 PM
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Guygettnby
some urchins are not reef safe, some are, the long spine is pretty safe as well as several others, I have a tuxedo and have never had any problems with him, he even manages not to knock everything over. I personally love urchins and if I have to sacrafice some coraline algae so be it. I have seen debates to this as well, yes they do eat coraline, however the subject has come up before about the possibility of them spreading it as well
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Angela This hobby isn't just for the boys.. Its all fun and games until someone gets salt water in their eyes! |
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#7
12/09/2007, 01:56 PM
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i had several differnt urchins as i though they were cool too. until i noticed them eating my live rock and turning it into rubble. maybe you have had good luck with them, but they have been nothing but problems for me and all i know who have had them. i have personally seen them destroying my live rock and making holes in it. not too mention eating my corline algea, uprooting all macro algea, knocking over my live rock and killing off some corals. Too me that is enough to make these things not reef safe. maybe too some they wouldnt care about this or have the money not to care if they have to replace something.
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