Im sorry if im wrong but im sure thats not mylar, For your heating problem as I said sorry if im wrong its probly because you've got your setup with tin/aluminum foil. If it is mylar then its either old stuff or its shitty mylar, Also with your reflecting you also wanna make sure if your using mylar to not make folds and crumples in the mylar because when the light reflects off of it, the light creates hot spots because theres bends in the mylar :P

Aswel to your problem with it small, What kind of nutes are you using? Also maybe try using some stronger lights.
c0mrade Reviewed by c0mrade on . diesel ryder winter grow Hi All So I have decided to start a new grow that will incorporate both inside and outside grow elements. I will be growing on our balcony but will be able to move it easily inside if it starts to get too cold something I don't think will be an issue for me. The strain I am going with is Diesel Ryder from Joint Doctor so they should finish between Xmas and New Years. I bought this small tiered greenhouse I plan on using only one two of the shelves but may use more depending on the spacing. I Rating: 5