Sorry i don't quite understand your question?
One is a hopper (grey) with wheat and a smattering of pea nuts in.
Im running two of these.
Squizzers were ignoring the wheat, so I added peanuts,
Then they would hoof all the contents out to get the nuts as many of us have found!
So copper tube with slots and filled with just peanuts.(too many slots on one!)
They can only nibble the nuts so cutting down on waste and lasting longer between top ups.
I like to think they can scent the nuts in the tube.
Photos from a few weeks back and buggers have gnawed the plastic clips!
Replacing with metal tool clips.
Just my take on feeding station running.
Hope this explains .
All positive criticism welcome.
Thanks for your interest.
Keep at them!