I am pretty sure they will, it is only 11 liters. They will first veg for a month regardless of the 12/12 cycle, an then it is another 14 weeks of flowering. These plants become huge during the elongation phase in the first half of flowering. A5 is a real jungle plant lol even if there is some NL in there. It stretches like a motherfuckers if it is anything like the ag13 mom I used to have.