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#1
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![]() One of my Live rocks has a portion the size of a toonie that has turned from purple to black??? What could this be and should I be concerned?
If so how to get rid of the black and not damage the nice rock? Thanks all, Steve'o |
#2
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![]() Sponge possibly? Have a look below.
http://www.reefcentral.com/forums/sh....php?t=1140423 Post a pic if you can, will make it much easier. |