Is it OK to put a ziplock bag feeder on top of the inner cover (rather than directly over the frame), with a small medium over the inner cover and the outer cover on top of the box?
I don't have one of those shallow boxes to make space for the bag feeder, and I don't want to put a whole empty medium over the frame (trying to keep my smaller hive as warm as possible)
That should work alright. Make sure you dont give too much space.
I just use a shim about 2 in deep when I baggie feed