hey dude nice work going on! i got a real real similar setup. 400w MH switching to a 400w hps for flower, there only a few days in. but im using the dyno-gro too and i was wondering what you did for feeding these guys through, when you started the feeding, and maybe a recipe you were using, i havent used it before. my plants are in coco so i dont no how much different it would be from your soil. these look wicked though man keep it up
Hey thanks moshi!
So for vegetative I found I didn't really need to add any extra nutes because the Fox-Farms soil already had organic nutes mixed into it. I only used the 'Dyna-Gro, Liquid-Grow' once, that was in the 4th week before I switched to 12/12.
For flowering, I added 1/2-teaspoon of 'Liquid-Bloom' to 1 gallon of water. I let the plants tell me when they were thirsty, so I only added water when the soil was dry to the touch. Almost as if the plants were on their own consistent schedule they wanted water about every 3 days. Throughout the entire flowering stage I also added 1 tablespoon of molasses to every watering. Occasionally a teaspoon of epsom salts were also added for a bit of extra cal/mag. The last week and a half they were only given pure water.
I don't have any experience with coco-mediums but if it is at all like soil you may find a similar feeding schedule to work well for you. I let the plants tell me what they need and follow the dosage on the back of the bottle. Dyna Gro is great because as well as NPK it also includes all your trace elements, so you shouldn't need to purchase anything extra. I found it's strong too, I always wanted to add just a bit more than what the dosage says but really you don't need to. A small dose is all it takes or it will burn your plants.
Hope that helps, good luck with your grow!