Starting the Martha off with some pre-made blocks I got on Etsy from Trailbridge Farms. I bought a combo of two blocks, one oyster and one shittake.
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Starting with a Martha
After some research, getting started with a Martha. The lights are from Walmart, humidifier from Amazon and fan from dollar store. I used a pipe joiner from Home Depot, cut a hole in the top of Martha and put a black filter and fan inside it. It helped to stabilize the fan and carry its weight.
Edit: (2023-07-14) The monitor seen here appeared to work properly but never was accurate when I used the corded sensor nor even setting it inside itself inside the Martha.