this post was submitted on 13 Oct 2023
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This particular tub failed, for the most part. While I did get a few mushrooms out of this, it was not a very good harvest.
The problem was that the substrate block shrunk faster than I expected and it started pinning hard on the sides and even in the bottom! That threw off the rest of the grow and the mycelium seemed to be wasting energy on fruits that were never going to form properly. (I made a note in the original post that pinning had stalled, and this was the actual reason for that.)
Since this tub, I have done about 5-6 other monotub grows using a plastic liner that will stay attached to the substrate as it shrinks which eliminates pins forming on the sides.
Here is an example of a similar grow with much better results (it developed trich after the second flush, but shit happens):
Since that grow, I have been working on getting better consistency in substrate thickness for a more even canopy. Here is my latest smaller scale test for canopy development that I am trying to replicate in monotubs:
For my next shoebox grow, I am going to try slow, selective pruning to encourage larger fruit development. My fear is that any "shock" from pruning may trigger early sporulation. Dunno. If it works in a shoebox, it may work for a monotub.