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what are these? They are incredibly tiny, and only clump together on top of the black diamond blasting "sand" substrate, I don't see them free swimming. They are right under the heater and seem to clump there. I did a w/c 2 hours ago to remove a clump.. they're right back though (lots of these tiny things). Lights on in tank.. no fish or inverts just newly bought plants in new tank (less than a week of being set up). Again not swimming around just on top of or burrowing into the substrate. They are cream-white colored and smaller than 20-40 blasting 'sand'


Camera won't focus on them close up sorry


Camera won't focus on them close up sorry