Thanks, yeah this is my 1st grow. I started back in September with a crappy setup and from a lot of reading here I gradually learned and improved my setup. Looking back at the 1st posts in this thread, I didn't have a clue - "Do I need ventilation"...Doh! I'm actually surprised that it went so smoothly actually. When I started, my attitude was "I know I'm going to screw up but I don't care because this is my learner grow" so it's quite nice that it all went well.