Mob spawnrate

[Akub2003]

Hi i have 2 creeperfarms in none is single creeper spawn.
Why is So small spawnrate

 

[Arandomwandererr]

Tbh, this has happened to me in the past, but are you sure you have made enough room for the spawner to be able to spawn??

 

[Akub2003]

Tbh, this has happened to me in the past, but are you sure you have made enough room for the spawner to be able to spawn??

I don't have creeperspawner just creeperfarm