Auto Bcn Critical xxl.. Newbie First Gro

People who are great at growing things are often described as green fingered. I on the other hand would describe myself as a stubby fingered goon who has prematurely euthanized every plant I have ever glanced at.. So, you can take it as correct that I am approaching this first grow with some trepidation! Its not the done thing here in the UK to grow anything stronger than a mint plant so my location for the new hydrolab 2 x4 x 5 tent is driven by privacy. Unfortunately it is possibly the worst location due to it being a concrete out building with a tin roof and we just decided to have a 35°c heatwave for 3 weeks right at the start of the grow. I lost 4 plants with temps inside the tent reaching 49°c so I called a halt until the heatwave subsided. I had started 3 bcn xxl critical autos off prior to switching off so they didn't have a great start as they were shoved outside to live or die.. Turns out they lived and my fingers of doom may be on the turn to slightly greener :)