In Mycelarium a hedgehog wanders across the forest floor and takes the mushrooms you have placed on the surface, and there are two ways to deal with it: unlock the Repeller Mushroom so it pushes the hedgehog off your colony, or work with the hedgehog and take the mushroom it is carrying. Players have been asking for an indicator that shows a hedgehog has come or is coming for a placed mushroom, since right now there is no warning at all.
Mycelarium how to stop hedgehogs eating mushrooms: two ways that work
1. The Repeller Mushroom. It was added in Demo 2.0 to fight the hedgehog, and it is the direct answer. Once it is unlocked and placed, it holds the hedgehog off the surface mushrooms around it. What it does and how to buy it is in the Repeller Mushroom.
2. Shoot spores off its back. The hedgehog can be worked with rather than only fought. When it picks up a Spore Mushroom you can shoot spores straight from its back while it is running — the same wind-carried spores you would launch normally, but with the hedgehog as the carrier.
Why the hedgehog gets your surface mushrooms
A hedgehog takes mushrooms that have been placed on the surface, and players report losing one roughly ten seconds after setting it down, with no warning, and describe being left without that food source. A carnivorous mushroom placed early was taken by a hedgehog about ten seconds later as well.
The damage is worst on the mushrooms that cost the most. A Predator Mushroom set down for 20 food and produced 25 was gone before it paid itself back, and the hedgehog keeps taking them before you can get a good return. The full game is planned to add mushrooms whose job is to protect others from the hedgehog and from other enemies.
Which mushrooms are worth protecting
Not all surface mushrooms are worth the fight, and knowing which is which saves you the points. The Predators and other carnivorous mushrooms produce food and are worth protecting; the Fly Mushroom is too fragile to keep a predator away and produces only a little. What each mutation does is in the mushroom mutation list.