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Old 03-10-2011, 06:14 AM   #1
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best sea urchin for 46g reef??

What would be the best sae urchin for a 46g???

I really like black longspine but seem like id need more space than I can provide. Maybe a blue pincushion?? Please get back to me!
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Old 03-10-2011, 10:23 AM   #2
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Why do you want an urchin? They are nocturnal, and mostly hide during the day. The Blue Tuxedo (Mespilia globulus), or Pincusion (Lytechinus variegatus) would be fine a 46 with lots of LR to roam around.
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Old 03-12-2011, 12:37 AM   #3
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The red urchin like in my display pic are very very pretty. Best colors in my opinion...i forget the scientific name, I'll try to look it up.
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Old 03-12-2011, 12:41 AM   #4
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Urchins and corals don't get along as the urchin will knock over your corals.
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Old 03-12-2011, 12:44 AM   #5
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Astropyga radiata is the scientific name. Like this one, their color also gets a lot nicer as they grow. Their spines are not as long as the black long spined urchin.

Red Long Spine Urchin - Astropyga radiata


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Old 03-12-2011, 01:37 AM   #6
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I guess I mainly want one because of how weird and interesting they are. Are they effiecient at helping with algae?
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Old 03-12-2011, 02:28 AM   #7
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yes very efficient with algae, some people don't like this since they will eat coralline algae as well as nuisance algae.
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Old 03-12-2011, 08:27 AM   #8
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I've had a black longspine. Mine grew too quickly, and those spines kept my hands from the tank. It always seemed to be in the area I wanted to be in. It stuck me once, and that was enough.... If I had a 125G I think I'd get one again, but start with a tiny one. I have a collector urchin, but had to move him to my smaller tank that had less coral. It has a habit of picking up smaller frags and putting them somewhere else. I have a small tuxedo in my other tank. It doesn't carry quite as much. Right now it has a Xenia, GSP, and some macroalgae on it. I put macroalgae in the DT to supplement my california sea hare, good treat for it. I'd consider a pencil urchin, they are more compact than the spiny black, but still you'd need to make sure you have some stable rock structure, looks like he could move some stuff if he wanted. Oh, all my urchins are out during the day. I can't say they do that great of job with algae, just neat to have. I have plenty of coraline in both tanks too.
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Old 03-12-2011, 08:57 AM   #9
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Quote:
Originally Posted by thincat View Post
Urchins and corals don't get along as the urchin with knock over your corals.
Odd, I thought in the past you had said you had an urchin and coral
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All proffered in a IMO, non offensive, nicey nice posting..............IMO
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Old 03-12-2011, 12:44 PM   #10
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The nice thing about the red or black urchin is the fact that they dont pick things up. I've had a pencil urchin once and didn't like him too much. He was a very large one and took chunks out of the rock. He was a little too constructive for me. Very cool looking though! I dont think you would too much of an issue with any urchin you choose to get. Just get the smallest one you can get since like nick and i said they do grow very very quickly!
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