I'm overdue for an update. Pics are at day 20 and 21 from sprout for Stardawg, with Banner 3-4 days behind.
I worked hard to get the humidity up and stable over the weekend. It's one disadvantage of growing in an open space: controlling humidity is a lot tougher and required, at least for me, purchasing a cool mist room humidifier. It's not as effective as the classic heat humidifier, I think, but it doesn't raise my canopy temps.
The plants responded well and their leaves seem more supple. Banner is still smaller than a Bic lighter at almost three weeks but leaves and nodes are at least growing.
When I'm gone in the afternoon and the sun is out, I take them out from under the HID to place them in a sunbeam. Banner especially seems to love this.
Yesterday, at day 21, I made the decision to top Stardawg at the fourth node. Nothing ventured, nothing gained. Pic of carnage enclosed.
The fancy, expensive soil I'm using was supposed to make these plants shoot up like rockets according to the guy at the hydro store (yeah, I know). Since I've got a lot of space under my light still, I'm soaking a Barney's Farm Glue Gelato promo seed and germinating it in some shitty old used potting soil with a bit of the fancy stuff mixed in as an experiment. (Thanks again,
@George Seeds, for all the promos you do.) Might give me an indicator of whether the fortified soil is too hot for my little autos at 100 strength.
I'll start supplementing with half strength Calmag at next watering.
First three are the setup and plants at day 20, last are topping Stardawg at 21 and the tiny but progressing Banner canopy.