As promised, it has been a week, and I have an image update (I will repost day 1). Buzzkilington's thread was getting so long that I figured I would start my own rather than posting to his and cluttering his space up.
I am unsure if what I am seeing is good progress for seven days and if what I see is typical for this method of growing since this is all new to me. The images here are the tub that was made by my first healthy colonized grain bag. The other grain bag that we suspected as contaminated is outside in a container that makes it impossible to photograph without removing its cover so I will wait on that one. What I can say is that I see about the same thing as this tub. So does it look like I am on the right track so far? I am trying not to move the tub around too much, but I have to move it a little to get enough light to take pics. Then I put it back in a dark place. I was planning to move it to sunlight once the substrate is fully colonized. Or should I keep it in the sunshine all the time at this stage? I have also been reading about "dunking" to induce fruiting and dunking in between flushes. Some people do not mention it all with their tubs, and others make a point to say it often. I am a little confused about "dunking." It turns out searching for terms like "dunking" and "cakes" etc. brings up way too many threads on this site to read through.