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Old 08-15-2006, 07:06 PM   #1
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White mold on my rock?

I have been cycling my tank for a week now, and all the live rock i had in there has become brown and looks dead. I also noticed this white moldy looking stuff on the dry rock i have in there. Is this all part of the cycling process or have i done something wrong?
Its a 29 gal with about 40 lbs of rock in there (about 15 of which was bought live).
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Old 08-15-2006, 07:54 PM   #2
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Sounds pretty normal. A certain amount of die-off onthe LR is expected. The white patches could be dead coraline.
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Old 08-15-2006, 08:35 PM   #3
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should i leave it on there? A friend of mine suggested buying a toothbrush and scrubbing it off. Will it dissapear after a while?
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Old 08-15-2006, 10:18 PM   #4
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No dont scrub it off as new coraline will regrow if your conditions are good.
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Old 08-16-2006, 10:52 AM   #5
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Sounds like a possible sponge. Does it look like clearish/white/mold? I would leave it in there. Any chance you can get a pic?

Quote:
Will it dissapear after a while?
If it is what I am thinking it is, mine made it through the cycle but got eaten by my urchins.
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Old 08-16-2006, 04:48 PM   #6
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White moldy stuff

Here is what it looks like. Its on more rocks now, at opposite ends of the tank.
Attached Images
File Type: gif dsc02343fixed_104.gif (244.8 KB, 1179 views)
File Type: gif dsc02343fixed_104.gif (244.8 KB, 660 views)
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Old 08-16-2006, 05:01 PM   #7
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White mold on my rock?

That looks almost like what I had. I believe it is some sort of sponge. Please feel free to correct me if I am wrong.

+++EDIT+++

You may want to try and get this moved to the ID forum, there are some folks that can probably tell you what it is.
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Old 08-16-2006, 06:56 PM   #8
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I`m going to move it there where it will get better attention.
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Old 11-10-2006, 12:15 AM   #9
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sorry to bring up an old topic...but can anyone id this white stuff... i now have it in my tank and would like to know if it is harmfull or helpful????


thanks
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Old 11-10-2006, 06:46 PM   #10
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Looks like a sponge to me.
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Old 11-10-2006, 10:49 PM   #11
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Harmless sponges. I have them pop up now and then, but my urchins seem to love them.
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