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Old 09-18-2010, 12:49 AM   #1
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brittle star

bought a coral and it has a few brittle stars on it. will they get bigger and leave the coral? will they stay small and cling to the rock?
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Old 09-18-2010, 01:00 AM   #2
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Hard to say if they will grow bigger, they can vary quite a lot depending what species it is, any pics or details on size, colour, etc.?

Brittle stars are generally mobile creatures and will move in search of food, shelter. etc. Without more info it's hard to be more specific.
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Old 09-18-2010, 01:08 AM   #3
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There is about 4 on this coral. Their arms look grey striped. They reach put when I feed the tank. Too small to get a pic.
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Old 09-18-2010, 03:51 AM   #4
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If they look like this they are mini stars:
If they look like this they are not:
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Old 09-18-2010, 10:45 AM   #5
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They look like the first photo. Does this mean they will not leave the coral?
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Old 09-18-2010, 11:48 AM   #6
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Quote:
Originally Posted by Wikki
Brittle stars use their arms for locomotion. They do not, like sea stars, depend on tube feet, which are mere sensory tentacles without suction. Brittle stars move fairly rapidly by wriggling their arms which are highly flexible and enable the animals to make either snake-like or rowing movements. However, they tend to attach themselves to the seafloor or to sponges or cnidarians, such as coral. Their movement has some similarities with animals with bilateral symmetry.
This is from the Wikki article on brittle stars, locomotion section.
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Old 09-18-2010, 02:27 PM   #7
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They rarely leave the LR or coral. They are good for the health of the tank.
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Old 09-18-2010, 03:24 PM   #8
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They are good janitors and will help to keep the tank clean. I agree with the micro or mini stars.
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