They are growing really fast, and especially wide. Space in the suitcase is getting a bit tight. We decided to top them on day 17. I've read posts of people warning against topping autos, but a lot of people also swear by topping, so we've decided to go for it since they seem to be doing good. They're being watered around every 4 days, with ~450ml water and 30 drops of Bonsanto Organic Boost each.