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Old 07-21-2017, 03:21 PM   #1
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White sponges???

About a month ago I set back up my 75 gallon tank and purchased some live rock from someone tearing down their tank. Lately I've noticed that there are about 6-7 of these white looking sponges growing in various places. They range from 1/4" to about an inch long. Should I be concerned???

Also there is another unknown which I have I have included a photo of. Any ideas???

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Old 07-21-2017, 03:43 PM   #2
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It looks like fungus.
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Old 07-21-2017, 04:18 PM   #3
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Nope they're harmless. I have hundreds in my sump and dark areas of my tank. They come and go.
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Old 08-03-2017, 08:09 AM   #4
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In the last pic, the little white thing looks like a new frilly mushroom. I have a new one on the frag that one of my frilly mushrooms is on, thinking it's multiplying. Will upload pic in a little while.
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Old 08-03-2017, 02:12 PM   #5
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To the naked eye it looks just like your pic but I couldn't get a good shot with my phone
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