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Old 10-13-2006, 04:49 PM   #1
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Reef safe urchin??

I think I want one. Tuxedo? Other? Will any do in a reef tank?
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Old 10-13-2006, 04:53 PM   #2
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According to Mr. Liveaquaria he is.

http://www.liveaquaria.com/product/p...cfm?pCatId=595
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Old 10-13-2006, 04:54 PM   #3
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All these listed here are reef safe
http://www.fantasyreef.com/database/...id=1&cat_id=12
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Old 10-13-2006, 04:56 PM   #4
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I have a Pencil and he adds allot of character to the tank. Haven't had him knock over any corals like some do.
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Old 10-13-2006, 04:57 PM   #5
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I went with a black long spine which I have had for about 18 months now. Probably stay away from pencil or pin cussion/tuxedo IMO as they can strip your coraline growth down pretty good and tend to knock down rock work. Mine even occassionally knocks something over.

Even with your 155g I would not go with more than a couple to start with.

Otherwise all are reef compatible.

HTH,
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Old 10-13-2006, 05:32 PM   #6
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Reef safe urchin??

I would stay away from the pencil, mine wedges in/under/between rocks and causes them to move. In a reef tank, I don't think you would want that to happen. I would go with the tuxedo, for the color, it looks like they are simillar to the pincushion and may have the feelers or tentacles. Be careful, they like to grab stuff and take it with them. You can see a few pics in my gallery. Mine took off with my old hydrometer for about half the day. He didn't pull it off the glass, it had just fallen. My fav was him lugging an empty shell with a bristleworm in it! LOL! They will also grab snails....

+++EDIT+++
They will chew the coraline off of your LR.
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Old 10-13-2006, 05:48 PM   #7
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Re: Reef safe urchin??

Quote:
Originally Posted by roka64
+++EDIT+++
They will chew the coraline off of your LR.
Yeah this was my major concern with the tuxedo/pin cushion. After spending months to grow coraline they can strip it off pretty fast. I saw some rock at LFS that had a white swaths cut through it from the urchins. They do not just nibble at the algea, but completely remove giving the rock almost a bleached look. Great for glass not so much for LR.
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Old 10-13-2006, 05:51 PM   #8
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I agree, but mine seems to grow back rather quickly. I think that is their teeth marks. I have two in mine, no problems. It's funny to look at one and turn around to do somethins, and it's already moved halfway around the tank.
Afilter, do the long spined ones have the tentacles and do they point in the direction of anything that they think is a threat?
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Old 10-13-2006, 05:55 PM   #9
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Afilter, do the long spined ones have the tentacles and do they point in the direction of anything that they think is a threat?
If by tenacles you mean the long spines then yes. And yes they have the ability to move them in a direction if threatned. You need to be careful working in close quarters as getting poked and having one break off is no fun. 8O
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Old 10-13-2006, 08:17 PM   #10
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My pincushion has little sticky tentacles, if you look at mine, you can see white spots inbetween the spines. Those streatch out and grab stuff, I believe they use them to pull themselves. I gues the long spines don't have those...interesting. I have tried to get a closer pic, but they are small....
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