Why do mushrooms do this?

[Dalmatia]

Are they reaching for light?

 

[reefwiser]

Sometimes they are trying to catch small bits of food in the water flow.

 

[Dalmatia]

I guess that's the same, as they get food via photosynthesis (hungry?)

 

[Jessica_canuck]

if its doing this all the time its probably reaching for light
if its just sometimes ^ above answer

 

[turok]

I vote reaching for light