looks like a root zone issue and possiblygiving too much light, if those nodes are all stacked directly on top of each other -- difficult to see this early on in a photo, though. i see cotys, first serated and then a third set of leaves and they all look like there's zero internode lenght i pictures. The twisting is more likely root zone related, but coudl be genetics too.
quantum boards? probably want18-20" of distance. If on 18/6 cycle for vege, maybe 66-75% power depending on if the lights are well-matched to area of coverage. that way when you go from 18h to 12h it is simply bumping power from 66% to 100% to match the fewer hours and give same energy as before (read up on DLI, daily light integral, to get a gist)... you'll want to target 35-40 DLI -- this is the same regardless of hours of use or size of garden.. which is why it's a concept you should understand so that you can make these decisions on your own with the variables at hand... too many variances between 1 garden and the next to give a specific answer in regard to 'how much light?"