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How much does light effect the growth of "beneficial" bacteria?

Our filters are mostly not exposed to any light and that seems to work out very well for the so-called beneficial bacteria. Same goes for the (same) bacteria that live in our substrate. In nature by far most bacteria live in soil. That seems to suggest that light is definitely not a prerequisite.

Cheers,
Michael
 
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I know bacteria grows with or without light, I’m asking whether “it” grows better with light.
Hi @castle

OK, reading your posts again, you're obviously referring to nitrifying bacteria. So, the paper that I attached is applicable - not only to AOB* but also AOA**

*AOB = Ammonia-Oxidizing Bacteria

**AOA = Ammonia-Oxidizing Archaea

JPC
 
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