Burmeseanswered grow question 4 years ago Hi friend, You can top or fim when she has 4 to 5 nodes.I recommend to go for topping rather than fimming.Fimming will take some skills to be precised.Topping would be easier for you.As you are growing photoperiod, you can top and train her as long as you want.And then put her into flowering.Happy growing... ✌️