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#1
10-08-2007, 12:00 AM
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quick question for you
i was looking for your input into your experience with urchins. i'm looking for a good reef safe urchin to help with a little hair algae. none of my tangs touch it and it is only in small certain areas of the tank and it annoys the living hell out of me so i was thinking of trying an urchin. i really dont want to go the sea hare route and have him die off when these little patches are gone. any advice would be cool, thanks
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#2
10-08-2007, 12:09 AM
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Hi,
I have a long spinned (black) sea urchin. It does a great job and doesn't upset my tank. I also have a crowned urchin which I have now put in my sump. It does a great job in the sump but was too distructive in my tank.
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125gal Reef with Fish, 40gal sump, Reefmania calcium reactor, MH, UVH, Moon, Aquazone plus 100, Auto Topoff, CoraLife 125 skimmer, GHL Profilux computer & special effects lighting. Fish:Coral Beauty,Yellow Wrasse,African Clown Wrasse,BiColor Anglefish,Banded Goby,Psycodelic Mandarin Goby Inverts:Long-spinned Urchin,Crowned Urchin,Feather Dusters,Fire shrimp,Banded Shrimp,Brittle Star Corals:Cup Coral,Frogspawn,Pink Open Brain Coral,Yellow Dot Zoanthid,White Tree Coral,Leathers 
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#3
10-08-2007, 12:13 AM
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I have three long-spined black urchins. One that hitchiked in with the rock. I suspect that they do eat some hair algae, but I wouldn't say they seek it out. I think they'll eat coraline as well.
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400 gal reef. Established April, 2007. 3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways, Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies My Tank: http://www.canreef.com/vbulletin/showthread.php?t=28436
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#4
10-08-2007, 01:11 AM
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In my old tank tried both the long black spine and the tuxedo urchins (separately) for a Lobophora problem. Neither touched the algae but they sure did go through the coralline and I don't think they ate anything else.
To bad because lack eating of algae aside, they are rather interesting, just my coraline growth couldn't keep up.
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#5
10-08-2007, 02:14 AM
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The long-spined urchin (diadema setosum) that I had ate all manner of algae, but it grew fairly quickly. I remember seeing online someone selling one the size of a basketball! So just be aware of that.
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~Drew 10G Nano * 10G Sump * Deltec MCE 600 Skimmer * JBL Viper 150w MH * Zeovit * Vortech MP40W Millions long for immortality who do not know what to do with themselves on a rainy Sunday afternoon. ~S. Ertz 
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#6
10-08-2007, 02:13 PM
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our tank was covered we got a pincution urchin (spelling doesn't count)he cleaned the tank really good
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#7
10-08-2007, 05:22 PM
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awesome guys thanks. even if they do eat coralline that would be a good thing too. it grows like crazy in my tank
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#9
10-08-2007, 05:42 PM
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I have a tuxedo urchin, I'm not sure he is good for anything at all other than the "wow is that an urchin" comments I get from nonreefers
 . But he doesn't hurt anything either so he stays
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#10
10-08-2007, 05:48 PM
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I have a hitch hiker that does more knocking off frags than algea eating.
Not worth the problems in my opinion. J
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