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Small white "tubes" on glass (HELP)
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12/15/2003, 01:56 AM
mherrb
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Join Date: May 2003
Location: Wisconsin
Posts: 135
I think, if I read your description correctly, that you are seeing a type of urn sponge. They are a sign that your tank is healthy. I don't know of a way to get rid of all of them (other than cleaning them all off by hand).
mherrb
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