I did a google search for "microbucket" - and m...

I did a google search for "microbucket" - and most of the hits were from postings I have done. Hmmm.

The search "micro bucket" yielded this interesting paper with this quote:

Some of the substrates are so called "micro-buckets", small cups of about 3mm diameter and depth, where of course also particles larger than 200μm will be admitted.

Er, 3 mm deep???

I laughed and laughed. The depth of field of the OM is measured in microns, so the microbucket would have to be full to the top to see anything in focus.

So much for the utility of one-third of the sample cells.