I took my clones which are already about 10 days old and already put them in big 5 gallon pots,,,they're presently under a 400 watt bulb and will stay there till my harvest is ready in my grow tent in about another 3 weeks, at that time I will take the clones and put them in the tent under a 1000 watter for another couple of weeks till they're ready for flowering,,,works for me,,,