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What are these things.. they look like little white filamentos volcanos. they attach to the glass and pluming in the fuge.. there was 1 now about 5 in about 2-3 weeks.. any clues?? too small to pic..
Yep, totally harmless. Just be careful touching them - they have bristles sort of like glass splinters that can get imbedded under your skin. Harmless to the tank, though.