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  #1  
Old 12-05-2006, 09:57 PM
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Yeah, just the regular long spine urchin. Diadema's are the ones that will poke you since their needles are so long. They also are really good at making sure your aquagloves (if you use them) won't stay watertight for too long.
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  #2  
Old 12-05-2006, 10:35 PM
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Oh i see, i have one and it doesnt touch any algea accept coraline, and boy does it do a number on that.
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Old 12-05-2006, 11:44 PM
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Diadema urchin:
http://www.liveaquaria.com/product/p...cfm?pCatId=591

I know some of the pincushion/tuxedo urchins can be fonder of the coraline, never heard of it with the long spines though.
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Old 12-06-2006, 12:21 AM
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I have 2 of these guys - and they do eat coralline algea - at least mine plow through it - and most other algea as well.
Also hurts like hell when if you get stabbed!
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Old 12-06-2006, 04:50 AM
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I picked up the other itty-bitty diadema tonight. Unfortunately by the time I was done dripping him in (even going from 1.025 to 1.025 I feel better drip acclimating s..l..o..w..l..y ) the lights were off so I didn't get a picture. Maybe tomorrow.

This guy is teeney-tiny! 1.5" max with the spines. Man can he truck along at a good clip!

I found that, at least with a tuxedo urchin that I had for a long time, it didn't matter if the urchin ate coraline because (so the theory goes anyhow) they spread the spores around and the coraline spreads faster. I found my rocks were still purple and pink and so on, but the glass did get some coraline munched off.

I've never tried a diadema type before so I thought I'd give this guy a go. I like the blue bits in between the black needles
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Old 12-06-2006, 07:48 AM
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Yep, mine was about 1/4" smaller... 1hr acclimatizing period - urchins and starfish are about the only animals that get an acclimatization in my world.

He finally came outta his hole, already doing a heck of a job on the hair algae in the 3g - you can see his trail from acclimatizing to the cave, then out this evening!

I'm trying not to say it...
I'm trying not to say it...
I'm trying not to say it...

Screw it... Tony does your wife know about your fascination with bums?
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Old 12-06-2006, 01:21 PM
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Afraid you've lost me. (If a diadema urchin reminds you of a bum, then .. uh .. man you need to get some better porn man )
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Last edited by Delphinus; 12-06-2006 at 01:31 PM.
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Old 12-06-2006, 01:33 PM
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Quote:
Originally Posted by Delphinus View Post
I like the blue bits in between the black needles
That's not his eye buddy
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  #9  
Old 12-06-2006, 01:49 PM
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I wasn't talking about that - I was referring to the blue shorter needles....
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