Does anyone have any advice regarding 16s metagenomics and an appropriate sequencing depth and paired end reads. Expecting around 10-15 organisms within the samples.
if its really only ~15 organisms, you don't need much, probably even a few 100 reads would do. But that depends also on how different you expect their abundances to be. The read length depends on the length of the region want to sequences. If you want to merge pairs they need sufficient overlap (> 10bp)