i can only agree about lanky ones, they need more light ! BUT they need air movement too, to make theirs stems stronger, so from garden wire you can make support
like i did here
growdiaries.com/diaries/135979-grow-journal-by-asnoriu/week/737550
older ones, looked like clones to me too ;) anyway, they heavily overfed, i would consider to transfer them to final pots asap and not feed for few weeks even. All weed specialized soil has plenty of goodies for few weeks anyways.
All the Best !