What are these please

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Waynage01

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Aug 3, 2014
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I have seen a few of these appearing on the rock in my tank. Most have been in a place where I can't get a picture. Anyone know what they are and are they harmless. Cheers


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Not sure what were supposed to be looking at, I sees couple sponges, and sine bubble algae, and possibly cyano.
 
Sorry. The White tube like things almost in the centre of the picture. Am working on the bubble algae. Am waiting until it is big enough and then sucking them off the rocks with a turkey baster.


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Thanks for replying sniperhank. Am still really green to sw tanks. Only had my first one set up 3 1/2 months. Am guessing they are harmless and I can just leave the in the tank.


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Brilliant. Thanks again


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