誰か、この砂床の上にある小さな黒いものが何かわかる人いますか?
Can anyone tell me what these little black items are on my sand bed?
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Do they move? Maybe collinista snails or limpets.
No, no movement!
Interesting. Do you use charcoal? Didn’t close my bag tight one time and they made a mess like this. Can’t see well enough to see shape.
Pick it up and squeeze them. Can be fish poop. My fishes hang around in one area and looks like that when they poop. Check the flow and see if that area is lacking and causing accumulation.
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Maybe bubble algae?
Nah, they look like little pellets