I stopped using veg nutes a day before i changed to 12/12. Whether that is right or wrong, i didnt know. My way of thinking was not to change 2 things in one day...
When i stopped using the veg nutes (Canna Veg A & B) i started with Canna Flores A & B.
The plants are now 40" tall and ill show you with a picture how big the buckets are.
I do wonder if i have a root problem although as ive said the plant looks really healthy, but i cannot get to the roots to look at them. First grow, bad tent location, better planning next time!! It would be one of the plants on the right, because the left i can get to fine!

Pic 1 - The plant in the middle-ish is the one going yellow. Its hard to tell in the pic as the colour difference doesnt seem to notice so much.

Pic 2 - The buckets.

Pic 3 & 4 - just a couple of general shots :rasta: