So I was inspired by the discussion on all straw grows here:
My prior all straw grow/s with cubes all molded out before first flush, so after talking with @peacefrog, I processed a bunch of straw using his method:
The only difference is that I did it 3x because I kept getting to tired to drain it properly.
Then when I went to grab some cube grain, I didn't have any ready to spawn and since straw has an expiration date, I grabbed two 100% colonized royal trumpet mushroom spawn (pleurotus eryngii)
That's right after spawning. Since then it's 100% colonized, I cleaned all that spare straw off the walls and I'm going to case it with a thick coir layer so that I can just leave the tub open, since oysters love fresh o2.
Here's right before I cleaned the tub:
Wish me luck! As usual, I welcome all comments, suggestions, and questions.