white goo on live rock - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 6 Old 01-14-2007, 12:47 PM Thread Starter
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white goo on live rock

i just moved some of my live rock around and noticed a big glob of this white goo on the bottom, what can it be? it looks like it can have something living in it cuz it has a hole in the middle.
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post #2 of 6 Old 01-14-2007, 01:03 PM
Sponge or tunicate. Good news, both are difficult and a sign of a good tank.
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post #3 of 6 Old 01-14-2007, 01:50 PM Thread Starter
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heres a picture of it
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post #4 of 6 Old 01-14-2007, 01:57 PM Thread Starter
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post #5 of 6 Old 01-14-2007, 02:01 PM


Yep sponge or tunicate. With the vents it's easier to call it a tunicate. tunicates are basically community sponges.
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post #6 of 6 Old 01-22-2007, 09:58 AM
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Tunicates and sponges are two completely different types of organisms. Tunicates belong to the phylum Urochordata and sponges belong to the phylum Porifera. Neither are necessarily bad for a tank, but if a sponge is exposed to air, it will more than likely die and can really foul up a tank. The picture looks like it could be an encrusting sponge.
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