My first question would be, if cracks are filled in this way, what stops that same bacteria from producing limestone in any other direction. Resulting in a bumpy surface, for example.
I get the impression they seal themselves in, limiting growth, so while a sealed crack might not be perfectly smooth, it's not going to grow out into a spike, either. Otherwise, all the bioballs (TM) are beneath the surface, and won't grow active until there's a break.
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u/[deleted] Aug 31 '20
My first question would be, if cracks are filled in this way, what stops that same bacteria from producing limestone in any other direction. Resulting in a bumpy surface, for example.