Hi, this is my first grow! I'm using a 1.2 x 1.2 x 2m tent, 600w HPS bulb. I have a 5" cooling tube and a small reflector (I have a bigger one, but it doesn't fit the cool tube, so I've just hung it above the other one to reflect the escaping light back down). I have 2 x 6" clip on fans circulating air. I have been advised that I won't need another intake fan as the size of the tent and the vents at the bottom are sufficient for air circulation?? I will have a 5" fan for removing air through a 20cm carbon filter (brand new) later on in the grow when needed. I'm growing Super Critical Autos from Greenhouse Seeds. I germinated straight into the final pots. Not sure of the size of the pots, but they seem big enough from what I've seen on here. I'm using Canna Professional Plus with a 30%-40% perlite mix. I soaked the soil before planting the seeds for 24 hours with tap water (left for 24 hours) and Canna Rhizotonic (only 5ml in 9lts) balanced to 6.5ph. Planted the seeds and covered with cling film. They all popped within 72 hours and from what I can tell, they seem to be doing OK. I watered again today, 5 days from popping through. My temps are sitting at 26-29°C in the day and dropping to 18-20 at night. Humidity is hovering about 55%. I have my light turned down to 400w and I'm running the lights and fans at 18/6. I have the thermometer placed on top of the pots and the light is about 30cms from the pots. I will put some pics up for you to have a look. Please criticise if you see any flaws in my set up, like I said this is my first grow so really would appreciate any advice or hints and tips! Thanks for taking the time to read this and I look forward to hearing for you!