hey bro....

and welcome

um, you gotta ditch that tin foil quick fool (hot spots, poor reflectivity) ... go with some flat white paint or mylar or car dashboard reflector material...

and you should fill those containers to the very top with soil (so no fungus grows due to lack of airflow) also more dirt for the plants

which are waaaaay stretched... I have actually never seen that before...

my humble advice, transplant into bigger pots with quality soil and bury those plants all the way down to where just the first set of leaves is just a half an inch or so out of the soil.

in order to avoid that stretching, keep your CFLs within a few inches of the plants...

peace