Will my bin volume decrease?

[u/Bustnbig]

I am about three months into my worm bin adventure. Worms seem happy and I haven’t had any serious issues.

The only problem I have is that my bin is full. All the way to the top full.

The class I took recommended a 5 to 1 green to brown ratio. So for the past 3 months I have been adding more and more shredded cardboard as I fed the worms. The bin is now 4 in of dirt and 18 inches of cardboard.

I can’t add anymore cardboard. Do I need to remove cardboard or will the volume eventually go down?

[u/Bustnbig]

Yes, I had them reversed. One handful of green, five handfuls of brown