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Unread 06/09/2009, 08:25 AM   #9
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Join Date: Sep 2007
Location: Indianapolis
Posts: 61
Originally posted by tasos
I think this particular species of sponge is symbiotic with cyanobacteria like corals with zooxanthellae...Anthony Calfo told me this at his visit to Greece.I am almost sure it was that sponge.There was in a 500G tank , it kept an area of 10 inches, and it didn't have to do anything with cyano occurence, though....
Yes, that seems to be correct. This photosynthetic sponge is symbiotic w cyanos. But you mean that in spite of an area being covered by the sponge, there was still red cyanos growing elsewhere in the tank?

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