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Old 06-29-2009, 07:24 PM
andyc1983 andyc1983 is offline
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Default live rock turning black
Hey guys I just found a small area on a piece of my live rock where it appears to have started turning black. It was about half a square inch. It was only a small piece of rock so I threw it out but has anyone ever heard of this happening before?
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Old 06-29-2009, 08:03 PM
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was it hard crusty black? I've had coralline that is virtually jet black. Did it come off easily?
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Old 06-30-2009, 12:22 AM
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Quote:
Originally Posted by ricosuave View Post
was it hard crusty black? I've had coralline that is virtually jet black. Did it come off easily?
It didnt seem crusty at all it did come off kinda easy and this stuff is like pitch black as well almost looks like a hole in the rock
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Old 06-30-2009, 02:49 AM
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Could be cyano. Can you post a pic and your water parameters?
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Old 06-30-2009, 03:42 AM
DaveK DaveK is offline
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It could also be a sponge, or a few other things. Its really hard to tell with out a photo. However, removing it does resolve the issue.
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Old 06-30-2009, 04:38 AM
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I found another spot on a different rock. Sorry I don't have a cam right now but it this helps it looks just like some kind of black fungi my calcium is at 500 alk is at 179 ppm nitrates 5 to 10 phosphate 0 ppm tomorrow I'm gonna try scrubbing it off in several small buckets of aquarium water. And try my best not to disturb it while removing it from the tank so It won't have a chance to spread.
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Old 06-30-2009, 02:01 PM
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There is some kind of black tar looking algae/sponge that is on some of the rocks in the waters off the coast of Florida. I suspect this is what it is. It does need removed as it will grow and cover anything else that is on the rock.
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Old 06-30-2009, 11:59 PM
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I have a few of those black sponge looking things on my rocks; doesn't seem to bother anything.
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Old 07-01-2009, 12:27 PM
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Hey guys,
My name is Kerry, i live in india over here the hobby is just startin up good .. i have a 50gal tank , but now the live rocks are turnin brown amd i dont have a chiller installed m not sue wat to do can url help me please ,, ma mail id is thedeadiswalking@yahoo.com
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