I thought he was just trying to make some cash. My growroom has minute gaps but don't think there's anything to worry about. Thanks a lot for your views zandor & unmeg - they make much more sense than wot that guy in the shop said. Will ignore the 'white black white' idea!!!
ganjamania Reviewed by ganjamania on . White Black White? Was wondering if anyone can help? I went to buy some Mylar the other day and was told that if my growroom isn't totally free from outside light then Mylar is pointless. The guy said that you need to put white black white on 1st to make sure all gaps from external light are covered and then put Mylar on. Any advice much appreciated Rating: 5