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Old 03-30-2011, 05:43 AM   #1
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Spiny black urchin

Hi dose anyone know what the min tank size is for a spiny black urchin full grown
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Old 03-30-2011, 06:39 AM   #2
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Well I did some googling and Diver Dan of live aquaria says min 20g If you are intending to have a reef setup be aware that they may not eat you corals, but they will knock your frags over.
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Old 03-30-2011, 06:51 AM   #3
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Cool I've got a 55 gallon tank with an out break of brown alge diatoms I think will this urchin eat this alge
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Old 03-30-2011, 10:05 AM   #4
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Before buying it what are you going to feed it after the diatoms are gone? Do you have a glass tank some urchins can scratch acrylic tanks. Also the spines are about like a bee sting.

Usually diatoms are present in a newly set up tank, if your tank is over 3 months old you might want to figure out what is causing them.
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Old 03-30-2011, 11:52 AM   #5
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Moved the thread since this doesn't qualify for a profile..

Diatoms are a temporary thing in a new tank. It'll go away on its own.
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Old 03-31-2011, 08:10 PM   #6
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Joy 13 spiny black urchins can also be fead dried seaweed my tank is new and glass which leads me to my question what size tank can they be hosed in full size and do they eat diatoms algea
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Old 03-31-2011, 08:17 PM   #7
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And joy I've got a poison puffer in my tank and plan on getting a lion fish so the black urchin will fit right in
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Old 03-31-2011, 09:03 PM   #8
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Quote:
Originally Posted by Keysman View Post
Joy 13 spiny black urchins can also be fead dried seaweed my tank is new and glass which leads me to my question what size tank can they be hosed in full size and do they eat diatoms algea
Here is a picture of my urchin eating kelp.
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Old 04-01-2011, 12:35 AM   #9
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Tincat what urchin is that he looks cool and how big is your tank
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Old 04-01-2011, 02:31 AM   #10
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I know most will eat macro algae as well, that is why I was wondering what they planned to feed it. My friend that enjoys using my tanks as a dumping ground tried to give me his and after researching I knew that my macros were on their menu so I found another home for them.
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