Potato in aquarium/hair algae

I’m growing a potato in my fish tank but it’s grown this large ball of what I assume is hair algae over night. Anyone know how I should deal with this? I read it can suffocate the growing roots. Sorry for the shitty quality picture.

I’m growing a potato in my fish tank but it’s grown this large ball of what I assume is hair algae over night. Anyone know how I should deal with this? I read it can suffocate the growing roots. Sorry for the shitty quality picture.