@Deleena and @Bill
I collected old horse poo on a horse riding trail near my house. Mixed it with coir at 50/50, brought to fa little bit more than field capacity, and pasteurized in turkey baking bags in my oven. The lowest setting on my oven is 170 degrees and I left them in there for 12 hours.
Spawned into the poo/coir mix with colonized WBS. 1:4 roughly.
For the FC I use an "iris" 74qt weathertight tote. it's a little pricier than your normal plastic tote, but I got this because I have a lot of house plants and there is always a fungus gnat or two trying to get in my FC. This one has weatherstripping and can be sealed at the top. It has turned out to be incredibly sturdy and I imagine I'll be using it over and over for years. With a 1/2" drill bit I put 10 holes going around at substrate level, 8 going around just under the lid, and one on each bottom corner. i don't know if there is a lot of voodoo that goes into hole drilling, but this seems to work for me.I taped every hole up with a "see through" ribbon I found at the fabric store.
This same "iris" brand sells "grey utility trays" and I find them perfect for cubensis. They are 100% opaque and 5 inches deep. Also, they fit *perfectly* into the 74qt tote, so there is no wasted space. And I can dunk the sub by simply lifting the tray out of the FC.
Filled the tray with sub/spawn mix to 4" deep and covered in two overlapping pieces of aluminum foil with a few holes poked in them, placed in the FC, and then covered the FC with a light blanket. I think that the blanket keeps the sub warmer with no supplemental heat needed (my house is in mid 60s).. also acts as a filter so there are no contaminants flying into the holes (i don't use polyfill). The aluminum foil is for blocking light and FAE, but also IME it is great for preventing evaporation from the sub. When it's time to fruit, you have that much more water in the sub. Also, a colonizing sub can get warm, and if it wasn't covered, there would be condensation raining down on it and possibly leading to contamination.
When it comes time to fruit, I just remove the foil and place the FC in a closet with a little clip-on fan running on Low in such a way that it will circulate air in the closet but not blow directly on the FC. It's probably not necessary, but I heat the closet with a small space heater set to the low 70s. I found a tiny 400watt electric oil filled heater online.
Fan occasionally. I know that the FAE and RH is in good balance when there is condensation on the walls of the FC but there is no condensation in rings around each hole. Sometimes the condensation starts dripping down the sides or threatening to rain down from the lid, I will open completely for a few hours and let everything dry out, then cover again. Once the mushies really start growing, about 5 days before the veils break, it gets very hot and humid in there so I barely crack the lid on one side and prop it up by sticking a small folded paper between the lid and the rim.
TBH this particular strain is relentless. The mycelium is aggressive and it will reliably put out massive flushes 14 days after initiating fruiting. Other strains will take longer.... longer time means more opportunity for contamination. I'll try to take some prints on the second flush and will share with anyone, just PM me!
(I have no idea why the photos came out rotated to the left. sorry!)