Hey everyone! I have been raising bees for 3 years now but this is my first post. I live in Nashville, Tn and this summer was extremely hot and dry. I have two hives and feel that they don't have enough stores to get them through the winter. I've been using my top feeders to feed them 2:1 sugar syrup and they've been taking a gallon a day. How long should I keep this up? How do I know when they've had enough? It's going to get expensive if I keep this up!