Re: size of healthy brood chamber
Its almost impossible to pic a number for colony strength. That is one of the major reasons it is recommended to have 2 hives, if you had another to compare you could tell what might be good and what might be kinda normal.
Comparing it with someones bees who are within a couple miles can help but its still not the same. When my hives are booming before the flow and I'm feeding heavy they can have 10 or 12 frames of brood at a time, Their coasting now with about 3-5 frames now.
I'm not tense, Just terribly, terribly alert!