what's the yield on these and is it better to do 2 layers of colonized grain rather than just the one rather than use another tub or do you recommend the 2 layer technique?
I like the way I did it here works great for the small tubs. I do a 1 part spawn to 2 parts substrate. So 1 650g coir brick and 8 cups vermiculite I can do 5 tubs. When it comes to yield that's where genetics come to play.
