Hi. I have 2 hives, both 1-deep, one of them is really weak and another one that seems to be doing okay. I don't want to combine them together but I also don't want to spent money on packaged bees, is there a way to increse the amount of bees in my weak hive? This week we'll be in the 70s weather wise and I'm not sure when the flow is suppose to start. Trees are starting to bloom outside and I'm not sure if they are suppose to start to built up or is it still too early?