Mushrooms are cool, but if they're growing in your substrate, it might mean things are too cool. Or too humid. Or both!
Organic growers can expect surprises to pop up in their soil, but mushrooms in a soilless mix mean that airflow, temps, or humidity isn't right.
Fungi thrive in conditions that aren't ideal for cannabis. The presence of mushrooms may indicate that more fungi are soon to follow, but this time on your plants!
Increase sunlight by de-leafing or spacing out plants and increase airflow with additional fans.
These slight changes will stop the flush of fungi and ensure that your crop doesn't fall victim to more damaging pathogens.