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it is difficult to state information as being constants. everyone has heard that plastic totes without holes get soggy wet on the bottom, become anerobic and the worms either head for better pastures or die from the anerobic conditions.
below are some photos i took today of a bin; mostly PE's, but probably 20% EF's. i have been trying to systematically redo my bins, setting up production containers, mostly 5-gal buckets. i should reach my goal of a million worms in 4 months. i had not paid much attention to this bin because it is PE's and i started with the EH's, then the EA's/EF's so this was the last small container to pull the castings out and getting the worms ready for their new homes.
what i found was sopping wet horse manure and full of worms. i don't know how it had so much water, it has been about a month since our last rain, the bottom too inches was totally water logged and anerobic. the pictures of the clumps of worms were in anerobic stinking muck. the deeper i dug the thicker the worms. they could have fled the tote. note that the worms were full size, not stunted. all were adult size worms, i found no young so they had stopped producing worms apparantly because of being so crowded.