Get help for free
Shroomok Buy me a coffee Shroomok Discord Shroomok Reddit
Buy spores

Shroomok: I don't see problems with shrooms here. But I'm worried about mycelium (the start of overlay). Mycelium dry a little bit. High humidity and water drops on mycelium that dry out usually create a matted or crust-like mycelium. As a result, overlay. Check your fruiting conditions! FAE and Humidity should be in balance Dry myc + high humidity or water drops on myc + high CO2 = overlay Lack of FAE + high humidity or water drops on myc = overlay high temperature + low RH + high CO2 = overlay low RH + high CO2 = overlay dry casing layer + high CO2 = overlay dry casing layer + low RH + high CO2 = overlay any of parameters + genetic changes = stroma Find your case

Uploaded on

Shroomok's choice on Amazon

Consultation & Mentorship

Let me (Shroomok) be your supervisor, mentor or just a buddy who can help/consult you regarding mushroom cultivation sub...

Read more

Aug 2025

Read more
Consultation & Mentorship

Cracked & split caps

A split or cracked mushroom caps and stems are neither contamination nor a disease. These symptoms indicate dehydration...

Read more

May 2023

Read more
Cracked & split caps

Black spots on shrooms & mycelium

Strange black spots suddenly appeared on mushroom caps and mycelium. Why is this happening? Is it contamination or not?...

Read more

Sep 2022

Read more
Black spots on shrooms & mycelium