Ours are about to turn 3. This winter they went through a molt. Their egg production all but stopped. Had raised them on Purina 16% layer. The molt was brutal on them. I changed them to 22% layer. The change was amazing. Their new feathers look like they did when they were young. When yours get 2 to 2.5 years old raise their protein level. They are high performance girls. It got where their feathers just didn't look good. The 22% took care of that. They are great fun and have nice attitudes. It seems there are different opinions on lights. This winter was the 1st time their egg production almost stopped. From 13 girls we we're only 1 maybe 2 a day. Normally we would get 10 to 13 a day. I added a light that comes on at 4pm and off at midnight. After about a week and a half of light we are getting 8 to 10 eggs a day. From going to bed at 4:30, they now are out hunting when I get home from work at 10 pm. Just some observations from our girls the last 3 years. We bought 10 more chicks by mail that were born Dec 1st. They are doing great. Have fun.