So you are thinking this guys is on crack, there is no way the plant grew 15" in a week. Well, they friggin did! They averaged a good 2" per day for 3-4 days then settled down to 1.5" or so. Is it the Canna Boost? Is it the strain? I really don't know but I'd be fine if they stopped going up so high. I raised my light twice and am now at the highest point I can go. The highest cola is just 4" from the LED panel so I am really gonna have to suppercrop it. I wanted to avoid doing it to my healthier colas but it's soon gonna crash into the light. I have 45" tall plant on a 16" high rez tank. That only leave me 11" of space to mount my led panel. I clearly switched to flower a week too late!
Meanwhile I also lowered the humidity again to 40-42 and upped my dose of Boost. Mixing my tank using the chart I posted here gave me 1.7 EC or 850 PPM, and it was obvisouly too high. I lowered it every day by adding only water and I am now back a 700ppm. I'll see tomorrow morning if the tank EC is more stable at a lower concentration. Burned some leaf with my concentration being a bit too high but it ain't stoppin them from growing!
Clones i made 2 weeks ago are now growing strong at various friend's house.
So clearly this thread could also be called "I outgrew my 3x3 tent".