May 19: Last time we compared the bottles.
The bottle was light, surface water is completely clear with
occasional green area (algae), the body completely filled with large orange
areas due to increased calcium sulfate. The fund is 100% black (left).
Instead, he was in the dark, it is the same as on April 7,
but with increased turbidity and algae on the surface, and increased black spots
on the body of the bottle (right).
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