Grain Head
Grain Head

What are small white things from my goldfish tank? Follow-up question.?
The size varies in size grain of sand to the very small stone. Di pinhead small size of the nail head. Larger than a grain of salt, coarse sand about the size. They do not cover the bottom, about 20 or so in there at any given time. They are heavy, do not pull the trap very well. I only glass and hard rock with black river almost bottomless tank, why are so remarkable. Fish pick them up and spit back out, so they are not edible.
I do not know if you saw my answer to your first question before it was removed or not. But apart from the remote possibility of the teeth that I am at a loss. MM
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