Leo's mycelium experiment By HGT Sep 9, 2018 got mycelium spores got mycelium spores from coach Tom's house Sep 10, 2018 added coffee grounds I added coffee grounds to the big mycelium jar Sep 11, 2018 there was growth! the mycelium can be seen Sep 12, 2018 banana peels added banana peels added to small jar Sep 13, 2018 banana peels are growing fast banana peels are beating the coffee grounds