I started an observation hive this year. It seems to be doing well, but since it is a large unit (3 frames high x 3 frames thick), there are lots of places I can't see.

Does anyone have any tips on maintaining an o.h.?

A few weeks after I set it up, the hive developed a case of chalk brood. It seems to be in remission. Are observation hives particularly prone to get chalk brood? My outdoor hives have never had that problem.

Thanks in advance!