Ooo, this was my 3rd cell. Those blinky rubber things broke off after a few months of use. I think this one had a customizable back plate? Like you could print something, cut it in shape and place it behind the plastic.
Yeah, cubensis. I grew the mycelium in vermiculite + rye flour mixture. This was my first grow, and each mycelium cake gave me 4 flushes. Kinda want to try agar tek next.