Please stop shooting pictures under your lights. Doesn't do your plants justice and makes for weird colors. Better to use a flash with the lights out - step back a little and zoom in. Outdoors is the best of course.
It's nice to spend money on the spendy soil, or subscribe to hundreds of dollars in super growth products (they all seem to "guarantee" incredible results).
Personally, I get a bale of Sunshine, mix in Perlite until it is around 30%, add OC+ to the top 3-4" of the whatever pot I am using (1...
In my neck of the woods, the great Northwest, Fred Mylers has the stuff in their garden dept. as does the local Grange. Generally $17.99 for the jug, occasionally on sale for $13.99.
Flushing should be done with water only (or with some sledgehammer) and then 2x-3x the amount of water as the soil content of your pot (3 gal pot - 6-9 gallons of water. Then give it a day before adding any nutes. Flush at 4 weeks, 8 weeks and 12 weeks (if they go that long - mine rarely do).
It's just Osmocote plus. If you don't see the 6 Months on the label, try another store. I believe there is only one variety of Osmocote Plus but a couple of the regular Osmo.
For your hempy bucket you will need to water the plant regularly until it's roots reach the reservoir. You can put the OC+ prills in one spot next to the side, opposite your hole. That will be the spot you will water it. You don't need to water the rest of the bucket. There is a hempy bucket...
Here is a Blue Frost from Goldenseed at only 3 weeks into flower.
My grow room is a little short so the plants don't get much over 3' but I bend the branches down to make a relatively even canopy and expose all those lovely nodes. They grow well under a 400 and a 600 watt HPS. I have a...
the little prills will persist through several recyclings of your soil, but they are pretty much empty and you need to continue to add Osmo each time you replant. I suggest composting your soil between grows and rinsing it out regularly to help the prills release what they might have left, which...