I personally don't see anything wrong with feeding your girls at that particular time. People will argue that they feed during the night because the roots take up nutes better and the water droplets will hurt the leaves if they feed during the day and yadda yadda. While others argue they feed in the morning, sort of like their plants' breakfast so to speak and so on. But honestly, I truly don't see any difference what time of day you feed them that will put your girls in any type of issues. What's important is that you actually feed them. Just my two cents. Hope that helps.