The whole idea of switching from 18-6 to 12-12 is the abrupt change. Its supposed to trigger flowering. Droopy to me has nothing to do with the light change. Droopy to me indicates drought stress.
How often are you watering? What hydro system are you using? What basic fert goes into your nutrient solution? Are you using any other supplements or bloom boosters?
The light change triggers the reproductive mechanism of the cannabis plants and they require a big boost of potassium and phosphorus to keep going. Advanced Nutrients Medical suggests to use a product called
Bud Blood during the first week of flowering.
Bud Blood has an NPK of 0-39-25. That means that it has no Nitrogen, but 39% Phosphorus (or Phosphates) and 25% Potassium. It is to be mixed into your nutrient solution only for week 1 of the bloom stage.
Weeks 2-3-4 or flowering, they suggest using a product calledvery appropriately
Big Bud. It comes in powder or liquid form. They both do the same jobboosting the proliferation and size/weight of the buds. The liquid is more convenient to use, but its a touch more pricey.
Weeks 5 and 6, Advanced Nutrients suggests using
Overdrive. Now these three bloom boosters should never, I repeat never be used all at the same time. The concentration of macronutrients is such that if you mixed all three in all at once, they would burn your marijuana plants to a crisp.
Another great product that comes in two different formats is Carbo Load Liquid and
Carbo Load Powder. During the reproductive cycle the plant undergoes hormonal changes and needs more sugars to build bud sites and supply the flowers with energy.
The carbohydrates in Carbo Load give cannabis plants the extra energy they need to grow super sized buds and flowers.
If you want to sample the crème de la crème of cannabis-specific fertilizers, you should try
Connoisseur A & B. This bloom-cycle only two-part contains polyamino alcohols, which elasticize the cell walls of the marijuana plant, enabling them to store more sugars for bud and flower growth.
I just had the privilege to harvest about thirty humungous buds off my six sinsemilla plants. I am curing them right now. They turned out to be so big because of the Connoisseur, that I had to buy new, bigger wide-mouth glass jars to cure them.
Your harvest will only be as good as the nutrients you feed your plants. And remember to water and feed them regularly, otherwise theyll droop.
Wes