09-16-2010, 08:22 PM
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I have hard white dots on my driftwood/glass
This is the only thing I have trouble with in my aquarium these days.
They are little white bumps, about the size of the head of a pin (not the pointy end). They are hard and white and hollow. When I scrape them off they are just a round shell-like thing. They first started showing up after I went on vacation one time, and at first I thought they were weird calcium deposits. But they multiply every time I go away for a week and my tank gets a little dirty. At first they were only on the crevices on the driftwood I have in there, but now I'm finding them in clusters of 3-5 on the heater, filter and glass. I didn't really have a problem with them when they were just on the driftwood, but now I actually have to razor-blade them off the glass as if they were algae (I can just pick them off with my fingernails, but it leaves a little footprint on the glass)
Does anyone have any idea what these might be? I'm having trouble with search engines because, well, "white things in aquarium" could be anything.