First grow comment / feedback welcome

Off to a poor start, but working to improve. Out of 5 seeds, only 3 germinated. Out of these three it only looks like two will survive, as after 1 week, the third is yet to open its leaves.

Plants were germinated and grown in small rockwool cubes over a 1 week period (windowsill, hence poor growth for lowryders) before being set into larger pots with soil.

Potted in biobizz allmix, under a 600watt HPS. Four new seeds arriving this week to bring it up to six lowryder #2 plants under one 600 watt HPS. Powerful lloydtron fan blowing to circulate air around the much larger loft.

Intend on buying a proper tent to prevent light waste.

Using rhizotonic in feeding water to bolster root production.

Pictures to follow as having difficulties with the uploader

Any suggestions? Do I need to lower the lamp?

can't read the thermometer, but you want to shoot for the mid seventies.

i've gotten +95% germination using the paper towel method.

you might want to grow some bagseed the first time around rather than adding your new seedbank seeds. make your mistakes and learn your lessons with cheap seeds before risking more of your expensive seeds.

Middle plant is clearly getting more direct light and is the best developed of the three.
Still quite underdeveloped for Lowryder #2s. Any suggestions? I have lowered the lamp to about 1ft above the plants. I have also swapped the large middle plant with the smallest to give it a better chance.

Given that these are meant to be halfway to harvest by now I think its a fair bet I'm running well behind. By how much? No idea, but I'd say it's significant, possibly up to 2 weeks.

Any thoughts from growers much appreciated

Lowered HPS lamp to 1ft above the lowryder #2s (from about 3ft)
FOUR DAYS AFTER THE PHOTOS ABOVE!
Incredible transformation.

Lowering that lamp really has made a huge difference. Attached photo shows plants as of today, absolutely huge!

Any estimates on yield guys?