Yep, was thinking the same thing. I'll check the temp difference today. Tkanks mate. I actually started reading Your Secret Garden thread yesterday Amazing work and beautifull photos. Will be getting a new camera soon so hope to bump the quality of mine soon. I'm bummed a bit that the plants didn't fill all the vert space. About 1/4 or even 1/3 wont be used . Next time I'll try to put 8 plants in maybe in smaller pots as I dont think those got fully filled with roots. At least it doesn't look like that when I stick my finger in the top of the pot. Next size down for air pots is 12,5L , would that be big enough for 3-4 weeks veg ?